{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-20009", "tracking": { "current_release_date": "2026-09-30T00:18:15.275162Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-20009", "initial_release_date": "2026-03-04T17:38:48.972751Z", "revision_history": [ { "date": "2026-03-04T17:38:48.972751Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (80).| Products created (2).| References created (1).| CWES updated (1)." }, { "date": "2026-03-04T17:38:55.421804Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-04T18:32:10.279748Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-03-04T18:32:12.516371Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-05T02:41:44.383423Z", "number": "5", "summary": "Source connected.| CVE status created. (valid)" }, { "date": "2026-03-05T09:09:37.073780Z", "number": "6", "summary": "Source connected.| CVE status created. (valid)" }, { "date": "2026-03-05T11:06:07.062042Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Products created (1).| References created (5)." }, { "date": "2026-03-05T11:06:10.275074Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-03-05T14:28:24.981264Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-05T14:28:27.274861Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-05T16:39:48.360435Z", "number": "11", "summary": "Unknown change." }, { "date": "2026-03-20T10:08:45.994174Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T10:08:48.264275Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-04-08T15:04:30.796287Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-08T15:04:33.095540Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-04-17T12:19:26.865406Z", "number": "16", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (4).| Product Identifiers created (4).| References created (1).| CWES updated (1)." }, { "date": "2026-04-17T12:19:34.330808Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-05-29T16:12:59.721968Z", "number": "18", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-06-15T17:53:11.858728Z", "number": "19", "summary": "EPSS updated." }, { "date": "2026-06-15T17:53:13.628946Z", "number": "20", "summary": "NCSC Score updated." }, { "date": "2026-07-22T18:58:57.651108Z", "number": "21", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-07-22T18:58:59.799492Z", "number": "22", "summary": "NCSC Score updated." }, { "date": "2026-08-25T15:49:20.946419Z", "number": "23", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-08-25T15:49:55.467877Z", "number": "24", "summary": "NCSC Score updated." }, { "date": "2026-09-02T10:42:09.762114Z", "number": "25", "summary": "EPSS updated." }, { "date": "2026-09-02T23:46:17.666280Z", "number": "26", "summary": "NCSC Score updated." }, { "date": "2026-09-03T14:33:49.790641Z", "number": "27", "summary": "EPSS updated." }, { "date": "2026-09-03T18:57:17.327027Z", "number": "28", "summary": "EPSS updated." }, { "date": "2026-09-04T15:43:30.205647Z", "number": "29", "summary": "EPSS updated." }, { "date": "2026-09-04T15:43:31.743370Z", "number": "30", "summary": "NCSC Score updated." }, { "date": "2026-09-05T15:41:29.762621Z", "number": "31", "summary": "EPSS updated." }, { "date": "2026-09-06T15:42:54.135980Z", "number": "32", "summary": "EPSS updated." }, { "date": "2026-09-07T15:43:52.582243Z", "number": "33", "summary": "EPSS updated." }, { "date": "2026-09-09T07:43:26.106110Z", "number": "34", "summary": "EPSS updated." }, { "date": "2026-09-09T07:43:27.931129Z", "number": "35", "summary": "NCSC Score updated." }, { "date": "2026-09-09T15:54:22.656794Z", "number": "36", "summary": "EPSS updated." }, { "date": "2026-09-29T16:05:44.183604Z", "number": "37", "summary": "EPSS created.| Unknown change." } ], "status": "interim", "version": "37" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<9.20.4.19", "product": { "name": "vers:unknown/<9.20.4.19", "product_id": "CSAFPID-5761770" } } ], "category": "product_name", "name": "ASA (Adaptive Security Appliance)" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=9.17.1|<9.18.4.71", "product": { "name": "vers:unknown/>=9.17.1|<9.18.4.71", "product_id": "CSAFPID-6057138", "product_identification_helper": { "cpe": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.19.1|<9.20.4.10", "product": { "name": "vers:unknown/>=9.19.1|<9.20.4.10", "product_id": "CSAFPID-6057139", "product_identification_helper": { "cpe": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.22.1.1|<9.22.2.14", "product": { "name": "vers:unknown/>=9.22.1.1|<9.22.2.14", "product_id": "CSAFPID-6057140", "product_identification_helper": { "cpe": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=9.23.1|<9.23.1.19", "product": { "name": "vers:unknown/>=9.23.1|<9.23.1.19", "product_id": "CSAFPID-6057141", "product_identification_helper": { "cpe": "cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "Adaptive Security Appliance" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/9.17.1", "product": { "name": "vers:unknown/9.17.1", "product_id": "CSAFPID-5166965" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.10", "product": { "name": "vers:unknown/9.17.1.10", "product_id": "CSAFPID-5166968" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.11", "product": { "name": "vers:unknown/9.17.1.11", "product_id": "CSAFPID-5166969" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.13", "product": { "name": "vers:unknown/9.17.1.13", "product_id": "CSAFPID-5166970" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.15", "product": { "name": "vers:unknown/9.17.1.15", "product_id": "CSAFPID-5166971" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.20", "product": { "name": "vers:unknown/9.17.1.20", "product_id": "CSAFPID-5166972" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.30", "product": { "name": "vers:unknown/9.17.1.30", "product_id": "CSAFPID-5166973" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.33", "product": { "name": "vers:unknown/9.17.1.33", "product_id": "CSAFPID-5166974" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.39", "product": { "name": "vers:unknown/9.17.1.39", "product_id": "CSAFPID-5166975" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.45", "product": { "name": "vers:unknown/9.17.1.45", "product_id": "CSAFPID-5167098" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.46", "product": { "name": "vers:unknown/9.17.1.46", "product_id": "CSAFPID-5167099" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.7", "product": { "name": "vers:unknown/9.17.1.7", "product_id": "CSAFPID-5166966" } }, { "category": "product_version_range", "name": "vers:unknown/9.17.1.9", "product": { "name": "vers:unknown/9.17.1.9", "product_id": "CSAFPID-5166967" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.1", "product": { "name": "vers:unknown/9.18.1", "product_id": "CSAFPID-5166976" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.1.3", "product": { "name": "vers:unknown/9.18.1.3", "product_id": "CSAFPID-5166977" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.2", "product": { "name": "vers:unknown/9.18.2", "product_id": "CSAFPID-5166978" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.2.5", "product": { "name": "vers:unknown/9.18.2.5", "product_id": "CSAFPID-5166979" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.2.7", "product": { "name": "vers:unknown/9.18.2.7", "product_id": "CSAFPID-5166980" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.2.8", "product": { "name": "vers:unknown/9.18.2.8", "product_id": "CSAFPID-5166981" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3", "product": { "name": "vers:unknown/9.18.3", "product_id": "CSAFPID-5166982" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3.39", "product": { "name": "vers:unknown/9.18.3.39", "product_id": "CSAFPID-5166983" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3.46", "product": { "name": "vers:unknown/9.18.3.46", "product_id": "CSAFPID-5166984" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3.53", "product": { "name": "vers:unknown/9.18.3.53", "product_id": "CSAFPID-5166985" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3.55", "product": { "name": "vers:unknown/9.18.3.55", "product_id": "CSAFPID-5166986" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.3.56", "product": { "name": "vers:unknown/9.18.3.56", "product_id": "CSAFPID-5166987" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4", "product": { "name": "vers:unknown/9.18.4", "product_id": "CSAFPID-5166988" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.22", "product": { "name": "vers:unknown/9.18.4.22", "product_id": "CSAFPID-5166991" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.24", "product": { "name": "vers:unknown/9.18.4.24", "product_id": "CSAFPID-5166992" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.29", "product": { "name": "vers:unknown/9.18.4.29", "product_id": "CSAFPID-5166993" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.34", "product": { "name": "vers:unknown/9.18.4.34", "product_id": "CSAFPID-5166994" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.40", "product": { "name": "vers:unknown/9.18.4.40", "product_id": "CSAFPID-5166995" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.47", "product": { "name": "vers:unknown/9.18.4.47", "product_id": "CSAFPID-5167100" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.5", "product": { "name": "vers:unknown/9.18.4.5", "product_id": "CSAFPID-5166989" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.50", "product": { "name": "vers:unknown/9.18.4.50", "product_id": "CSAFPID-5167101" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.52", "product": { "name": "vers:unknown/9.18.4.52", "product_id": "CSAFPID-5167102" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.53", "product": { "name": "vers:unknown/9.18.4.53", "product_id": "CSAFPID-5167103" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.57", "product": { "name": "vers:unknown/9.18.4.57", "product_id": "CSAFPID-5167104" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.66", "product": { "name": "vers:unknown/9.18.4.66", "product_id": "CSAFPID-5167105" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.67", "product": { "name": "vers:unknown/9.18.4.67", "product_id": "CSAFPID-5758415" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.68", "product": { "name": "vers:unknown/9.18.4.68", "product_id": "CSAFPID-5758416" } }, { "category": "product_version_range", "name": "vers:unknown/9.18.4.8", "product": { "name": "vers:unknown/9.18.4.8", "product_id": "CSAFPID-5166990" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1", "product": { "name": "vers:unknown/9.19.1", "product_id": "CSAFPID-5166996" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.12", "product": { "name": "vers:unknown/9.19.1.12", "product_id": "CSAFPID-5166999" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.18", "product": { "name": "vers:unknown/9.19.1.18", "product_id": "CSAFPID-5167000" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.22", "product": { "name": "vers:unknown/9.19.1.22", "product_id": "CSAFPID-5167001" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.24", "product": { "name": "vers:unknown/9.19.1.24", "product_id": "CSAFPID-5167002" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.27", "product": { "name": "vers:unknown/9.19.1.27", "product_id": "CSAFPID-5167003" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.28", "product": { "name": "vers:unknown/9.19.1.28", "product_id": "CSAFPID-5167004" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.31", "product": { "name": "vers:unknown/9.19.1.31", "product_id": "CSAFPID-5167005" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.37", "product": { "name": "vers:unknown/9.19.1.37", "product_id": "CSAFPID-5167106" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.38", "product": { "name": "vers:unknown/9.19.1.38", "product_id": "CSAFPID-5167107" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.42", "product": { "name": "vers:unknown/9.19.1.42", "product_id": "CSAFPID-5167108" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.5", "product": { "name": "vers:unknown/9.19.1.5", "product_id": "CSAFPID-5166997" } }, { "category": "product_version_range", "name": "vers:unknown/9.19.1.9", "product": { "name": "vers:unknown/9.19.1.9", "product_id": "CSAFPID-5166998" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.1", "product": { "name": "vers:unknown/9.20.1", "product_id": "CSAFPID-5167006" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.1.5", "product": { "name": "vers:unknown/9.20.1.5", "product_id": "CSAFPID-5167007" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.2", "product": { "name": "vers:unknown/9.20.2", "product_id": "CSAFPID-5167008" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.2.10", "product": { "name": "vers:unknown/9.20.2.10", "product_id": "CSAFPID-5167009" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.2.21", "product": { "name": "vers:unknown/9.20.2.21", "product_id": "CSAFPID-5167010" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.2.22", "product": { "name": "vers:unknown/9.20.2.22", "product_id": "CSAFPID-5167011" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3", "product": { "name": "vers:unknown/9.20.3", "product_id": "CSAFPID-5167012" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.10", "product": { "name": "vers:unknown/9.20.3.10", "product_id": "CSAFPID-5167111" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.13", "product": { "name": "vers:unknown/9.20.3.13", "product_id": "CSAFPID-5167112" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.16", "product": { "name": "vers:unknown/9.20.3.16", "product_id": "CSAFPID-5167113" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.20", "product": { "name": "vers:unknown/9.20.3.20", "product_id": "CSAFPID-5167114" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.4", "product": { "name": "vers:unknown/9.20.3.4", "product_id": "CSAFPID-5167013" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.7", "product": { "name": "vers:unknown/9.20.3.7", "product_id": "CSAFPID-5167109" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.3.9", "product": { "name": "vers:unknown/9.20.3.9", "product_id": "CSAFPID-5167110" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.4", "product": { "name": "vers:unknown/9.20.4", "product_id": "CSAFPID-5167115" } }, { "category": "product_version_range", "name": "vers:unknown/9.20.4.7", "product": { "name": "vers:unknown/9.20.4.7", "product_id": "CSAFPID-5167116" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.1.1", "product": { "name": "vers:unknown/9.22.1.1", "product_id": "CSAFPID-5167014" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.1.2", "product": { "name": "vers:unknown/9.22.1.2", "product_id": "CSAFPID-5167015" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.1.3", "product": { "name": "vers:unknown/9.22.1.3", "product_id": "CSAFPID-5167117" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.1.6", "product": { "name": "vers:unknown/9.22.1.6", "product_id": "CSAFPID-5167118" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.2", "product": { "name": "vers:unknown/9.22.2", "product_id": "CSAFPID-5167119" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.2.13", "product": { "name": "vers:unknown/9.22.2.13", "product_id": "CSAFPID-5167122" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.2.4", "product": { "name": "vers:unknown/9.22.2.4", "product_id": "CSAFPID-5167120" } }, { "category": "product_version_range", "name": "vers:unknown/9.22.2.9", "product": { "name": "vers:unknown/9.22.2.9", "product_id": "CSAFPID-5167121" } }, { "category": "product_version_range", "name": "vers:unknown/9.23.1", "product": { "name": "vers:unknown/9.23.1", "product_id": "CSAFPID-5167123" } }, { "category": "product_version_range", "name": "vers:unknown/9.23.1.13", "product": { "name": "vers:unknown/9.23.1.13", "product_id": "CSAFPID-5167126" } }, { "category": "product_version_range", "name": "vers:unknown/9.23.1.3", "product": { "name": "vers:unknown/9.23.1.3", "product_id": "CSAFPID-5167124" } }, { "category": "product_version_range", "name": "vers:unknown/9.23.1.7", "product": { "name": "vers:unknown/9.23.1.7", "product_id": "CSAFPID-5167125" } } ], "category": "product_name", "name": "Cisco Secure Firewall Adaptive Security Appliance (ASA) Software" } ], "category": "vendor", "name": "Cisco" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-20009", "notes": [ { "category": "description", "text": "A vulnerability in the implementation of the proprietary SSH stack with SSH key-based authentication in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to log in to a Cisco Secure Firewall ASA device and execute commands as a specific user.\r\n\r\nThis vulnerability is due to insufficient validation of user input during the SSH authentication phase. An attacker could exploit this vulnerability by submitting crafted input during SSH authentication to an affected device. A successful exploit could allow the attacker to log in to the device as a specific user without the private SSH key of that user. To exploit this vulnerability, the attacker must possess a valid username and the associated public key. The private key is not required.\r\nNotes:\r\n\r\nExploitation of this vulnerability does not provide the attacker with root access.\r\nThe authentication, authorization, and accounting (AAA) configuration command auto-enable is not affected by this vulnerability.  ", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-20009" }, { "category": "description", "text": "A vulnerability in the implementation of the proprietary SSH stack with SSH key-based authentication in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to log in to a Cisco Secure Firewall ASA device and execute commands as a specific user.\r\n\r\nThis vulnerability is due to insufficient validation of user input during the SSH authentication phase. An attacker could exploit this vulnerability by submitting crafted input during SSH authentication to an affected device. A successful exploit could allow the attacker to log in to the device as a specific user without the private SSH key of that user. To exploit this vulnerability, the attacker must possess a valid username and the associated public key. The private key is not required.\r\nNotes:\r\n\r\nExploitation of this vulnerability does not provide the attacker with root access.\r\nThe authentication, authorization, and accounting (AAA) configuration command auto-enable is not affected by this vulnerability.  ", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-20009" }, { "category": "description", "text": "A vulnerability in the implementation of the proprietary SSH stack with SSH key-based authentication in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to log in to a Cisco Secure Firewall ASA device and execute commands as a specific user.\r\n\r\nThis vulnerability is due to insufficient validation of user input during the SSH authentication phase. An attacker could exploit this vulnerability by submitting crafted input during SSH authentication to an affected device. A successful exploit could allow the attacker to log in to the device as a specific user without the private SSH key of that user. To exploit this vulnerability, the attacker must possess a valid username and the associated public key. The private key is not required.\r\nNotes:\r\n\r\nExploitation of this vulnerability does not provide the attacker with root access.\r\nThe authentication, authorization, and accounting (AAA) configuration command auto-enable is not affected by this vulnerability.  ", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-20009" }, { "category": "other", "text": "0.00381", "title": "EPSS" }, { "category": "other", "text": "5.9", "title": "NCSC Score" }, { "category": "other", "text": "Is related to a product by vendor Cisco, There is product data available from source Certbundde", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The CVSS vector string contains AV:N (Attack Vector: Network)", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5761770", "CSAFPID-6057138", "CSAFPID-6057139", "CSAFPID-6057140", "CSAFPID-6057141", "CSAFPID-5166965", "CSAFPID-5166968", "CSAFPID-5166969", "CSAFPID-5166970", "CSAFPID-5166971", "CSAFPID-5166972", "CSAFPID-5166973", "CSAFPID-5166974", "CSAFPID-5166975", "CSAFPID-5167098", "CSAFPID-5167099", "CSAFPID-5166966", "CSAFPID-5166967", "CSAFPID-5166976", "CSAFPID-5166977", "CSAFPID-5166978", "CSAFPID-5166979", "CSAFPID-5166980", "CSAFPID-5166981", "CSAFPID-5166982", "CSAFPID-5166983", "CSAFPID-5166984", "CSAFPID-5166985", "CSAFPID-5166986", "CSAFPID-5166987", "CSAFPID-5166988", "CSAFPID-5166991", "CSAFPID-5166992", "CSAFPID-5166993", "CSAFPID-5166994", "CSAFPID-5166995", "CSAFPID-5167100", "CSAFPID-5166989", "CSAFPID-5167101", "CSAFPID-5167102", "CSAFPID-5167103", "CSAFPID-5167104", "CSAFPID-5167105", "CSAFPID-5758415", "CSAFPID-5758416", "CSAFPID-5166990", "CSAFPID-5166996", "CSAFPID-5166999", "CSAFPID-5167000", "CSAFPID-5167001", "CSAFPID-5167002", "CSAFPID-5167003", "CSAFPID-5167004", "CSAFPID-5167005", "CSAFPID-5167106", "CSAFPID-5167107", "CSAFPID-5167108", "CSAFPID-5166997", "CSAFPID-5166998", "CSAFPID-5167006", "CSAFPID-5167007", "CSAFPID-5167008", "CSAFPID-5167009", "CSAFPID-5167010", "CSAFPID-5167011", "CSAFPID-5167012", "CSAFPID-5167111", "CSAFPID-5167112", "CSAFPID-5167113", "CSAFPID-5167114", "CSAFPID-5167013", "CSAFPID-5167109", "CSAFPID-5167110", "CSAFPID-5167115", "CSAFPID-5167116", "CSAFPID-5167014", "CSAFPID-5167015", "CSAFPID-5167117", "CSAFPID-5167118", "CSAFPID-5167119", "CSAFPID-5167122", "CSAFPID-5167120", "CSAFPID-5167121", "CSAFPID-5167123", "CSAFPID-5167126", "CSAFPID-5167124", "CSAFPID-5167125" ] }, "references": [ { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20009" }, { "category": "external", "summary": "Source - hkcert", "url": "https://www.hkcert.org/security-bulletin/cisco-products-multiple-vulnerabilities_20260305" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0077" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0601.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-20009" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://vulnerabilities.ncsc.nl/manual/CVE-2026-20009" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-20009" }, { "category": "external", "summary": "Reference - certbundde; cveprojectv5; nvd", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssh-keybypass-cr5xPUSf" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-dos-FCvLD6vR" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-scpcxt-filecpy-rgeP73nE" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0601.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0601" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-5166965", "CSAFPID-5166966", "CSAFPID-5166967", "CSAFPID-5166968", "CSAFPID-5166969", "CSAFPID-5166970", "CSAFPID-5166971", "CSAFPID-5166972", "CSAFPID-5166973", "CSAFPID-5166974", "CSAFPID-5166975", "CSAFPID-5166976", "CSAFPID-5166977", "CSAFPID-5166978", "CSAFPID-5166979", "CSAFPID-5166980", "CSAFPID-5166981", "CSAFPID-5166982", "CSAFPID-5166983", "CSAFPID-5166984", "CSAFPID-5166985", "CSAFPID-5166986", "CSAFPID-5166987", "CSAFPID-5166988", "CSAFPID-5166989", "CSAFPID-5166990", "CSAFPID-5166991", "CSAFPID-5166992", "CSAFPID-5166993", "CSAFPID-5166994", "CSAFPID-5166995", "CSAFPID-5166996", "CSAFPID-5166997", "CSAFPID-5166998", "CSAFPID-5166999", "CSAFPID-5167000", "CSAFPID-5167001", "CSAFPID-5167002", "CSAFPID-5167003", "CSAFPID-5167004", "CSAFPID-5167005", "CSAFPID-5167006", "CSAFPID-5167007", "CSAFPID-5167008", "CSAFPID-5167009", "CSAFPID-5167010", "CSAFPID-5167011", "CSAFPID-5167012", "CSAFPID-5167013", "CSAFPID-5167014", "CSAFPID-5167015", "CSAFPID-5167098", "CSAFPID-5167099", "CSAFPID-5167100", "CSAFPID-5167101", "CSAFPID-5167102", "CSAFPID-5167103", "CSAFPID-5167104", "CSAFPID-5167105", "CSAFPID-5167106", "CSAFPID-5167107", "CSAFPID-5167108", "CSAFPID-5167109", "CSAFPID-5167110", "CSAFPID-5167111", "CSAFPID-5167112", "CSAFPID-5167113", "CSAFPID-5167114", "CSAFPID-5167115", "CSAFPID-5167116", "CSAFPID-5167117", "CSAFPID-5167118", "CSAFPID-5167119", "CSAFPID-5167120", "CSAFPID-5167121", "CSAFPID-5167122", "CSAFPID-5167123", "CSAFPID-5167124", "CSAFPID-5167125", "CSAFPID-5167126", "CSAFPID-5758415", "CSAFPID-5758416", "CSAFPID-5761770", "CSAFPID-6057138", "CSAFPID-6057139", "CSAFPID-6057140", "CSAFPID-6057141" ] } ], "title": "CVE-2026-20009" } ] }