{ "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-2026-20034", "tracking": { "current_release_date": "2026-05-08T13:09:34.673890Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-20034", "initial_release_date": "2026-05-06T17:25:57.839830Z", "revision_history": [ { "date": "2026-05-06T17:25:57.839830Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (1).| CWES updated (1)." }, { "date": "2026-05-06T17:26:02.353909Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-05-06T17:45:56.181641Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (21).| References created (1).| CWES updated (1)." }, { "date": "2026-05-06T17:46:07.319568Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-05-06T18:08:55.516607Z", "number": "5", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| References created (1).| CWES updated (1)." }, { "date": "2026-05-06T18:08:57.740838Z", "number": "6", "summary": "NCSC Score updated." }, { "date": "2026-05-06T18:09:04.433169Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| CVSS created.| References created (10)." }, { "date": "2026-05-06T18:09:06.444165Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-05-06T19:05:38.869018Z", "number": "9", "summary": "Unknown change." }, { "date": "2026-05-07T11:05:48.337590Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Products connected (2).| References created (3)." }, { "date": "2026-05-07T11:05:50.186712Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-05-07T11:30:50.918862Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| News created (1)." }, { "date": "2026-05-07T11:30:54.418230Z", "number": "13", "summary": "NCSC Score updated." }, { "date": "2026-05-07T15:08:27.826682Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-05-07T15:08:38.284060Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-05-08T03:41:38.234992Z", "number": "16", "summary": "Source created.| CVE status created. (valid)" }, { "date": "2026-05-08T03:41:41.932045Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-05-08T13:09:26.414696Z", "number": "18", "summary": "Source connected.| CVE status created. (valid)" } ], "status": "interim", "version": "18" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/12.5(1)", "product": { "name": "vers:unknown/12.5(1)", "product_id": "CSAFPID-2857054" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su1", "product": { "name": "vers:unknown/12.5(1)su1", "product_id": "CSAFPID-2857055" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su2", "product": { "name": "vers:unknown/12.5(1)su2", "product_id": "CSAFPID-2857056" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su3", "product": { "name": "vers:unknown/12.5(1)su3", "product_id": "CSAFPID-2857057" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su4", "product": { "name": "vers:unknown/12.5(1)su4", "product_id": "CSAFPID-2857058" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su5", "product": { "name": "vers:unknown/12.5(1)su5", "product_id": "CSAFPID-2857060" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su6", "product": { "name": "vers:unknown/12.5(1)su6", "product_id": "CSAFPID-2857062" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su7", "product": { "name": "vers:unknown/12.5(1)su7", "product_id": "CSAFPID-2857064" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su8", "product": { "name": "vers:unknown/12.5(1)su8", "product_id": "CSAFPID-2857066" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su8a", "product": { "name": "vers:unknown/12.5(1)su8a", "product_id": "CSAFPID-2857068" } }, { "category": "product_version_range", "name": "vers:unknown/12.5(1)su9", "product": { "name": "vers:unknown/12.5(1)su9", "product_id": "CSAFPID-2857072" } }, { "category": "product_version_range", "name": "vers:unknown/14", "product": { "name": "vers:unknown/14", "product_id": "CSAFPID-2857059" } }, { "category": "product_version_range", "name": "vers:unknown/14su1", "product": { "name": "vers:unknown/14su1", "product_id": "CSAFPID-2857061" } }, { "category": "product_version_range", "name": "vers:unknown/14su2", "product": { "name": "vers:unknown/14su2", "product_id": "CSAFPID-2857063" } }, { "category": "product_version_range", "name": "vers:unknown/14su3", "product": { "name": "vers:unknown/14su3", "product_id": "CSAFPID-2857065" } }, { "category": "product_version_range", "name": "vers:unknown/14su3a", "product": { "name": "vers:unknown/14su3a", "product_id": "CSAFPID-2857067" } }, { "category": "product_version_range", "name": "vers:unknown/14su4", "product": { "name": "vers:unknown/14su4", "product_id": "CSAFPID-2857071" } }, { "category": "product_version_range", "name": "vers:unknown/15", "product": { "name": "vers:unknown/15", "product_id": "CSAFPID-2857069" } }, { "category": "product_version_range", "name": "vers:unknown/15su1", "product": { "name": "vers:unknown/15su1", "product_id": "CSAFPID-2857070" } }, { "category": "product_version_range", "name": "vers:unknown/15su2", "product": { "name": "vers:unknown/15su2", "product_id": "CSAFPID-5453105" } }, { "category": "product_version_range", "name": "vers:unknown/15su3", "product": { "name": "vers:unknown/15su3", "product_id": "CSAFPID-5453106" } } ], "category": "product_name", "name": "Cisco Unity Connection" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<14su5", "product": { "name": "vers:unknown/<14su5", "product_id": "CSAFPID-5455970" } }, { "category": "product_version_range", "name": "vers:unknown/<15su4", "product": { "name": "vers:unknown/<15su4", "product_id": "CSAFPID-5455972" } } ], "category": "product_name", "name": "Unity Connection" } ], "category": "vendor", "name": "Cisco" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-20034", "cwe": { "id": "CWE-35", "name": "Path Traversal: '.../...//'" }, "notes": [ { "category": "description", "text": "A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/20xxx/CVE-2026-20034.json" }, { "category": "description", "text": "A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-20034" }, { "category": "description", "text": "Multiple vulnerabilities in Cisco Unity Connection could allow a remote attacker to execute arbitrary code on or conduct server-side request forgery (SSRF) attacks through an affected device.For more information about these vulnerabilities, see the Details ", "title": "cisco - https://sec.cloudapps.cisco.com/security/center/publicationService.x?limit=20" }, { "category": "other", "text": "0.0036", "title": "EPSS" }, { "category": "other", "text": "7.0", "title": "NCSC Score" }, { "category": "other", "text": "There is product data available from source Certbundde, There is cvss data available from source Cisco, There is cwe data available from source Cisco, Is related to a product by vendor Cisco, There is news data available from source Securityweek", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "The CVSS vector string contains AV:N (Attack Vector: Network), Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-2857054", "CSAFPID-2857055", "CSAFPID-2857056", "CSAFPID-2857057", "CSAFPID-2857058", "CSAFPID-2857059", "CSAFPID-2857060", "CSAFPID-2857061", "CSAFPID-2857062", "CSAFPID-2857063", "CSAFPID-2857064", "CSAFPID-2857065", "CSAFPID-2857066", "CSAFPID-2857067", "CSAFPID-2857068", "CSAFPID-2857069", "CSAFPID-2857070", "CSAFPID-2857071", "CSAFPID-2857072", "CSAFPID-5453105", "CSAFPID-5453106", "CSAFPID-5455970", "CSAFPID-5455972" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/20xxx/CVE-2026-20034.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-20034" }, { "category": "external", "summary": "Source - cisco", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy/csaf/cisco-sa-unity-rce-ssrf-hENhuASy.json" }, { "category": "external", "summary": "Source - cisco", "url": "https://sec.cloudapps.cisco.com/security/center/publicationService.x?limit=20" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1388.json" }, { "category": "external", "summary": "Source - securityweek", "url": "https://www.securityweek.com/cisco-patches-high-severity-vulnerabilities-in-enterprise-products/" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=10000" }, { "category": "external", "summary": "Source - hkcert", "url": "https://www.hkcert.org/security-bulletin/cisco-unity-connection-multiple-vulnerabilities_20260508" }, { "category": "external", "summary": "Source - ncscclear", "url": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0136" }, { "category": "external", "summary": "News - securityweek", "url": "https://www.securityweek.com/cisco-patches-high-severity-vulnerabilities-in-enterprise-products/" }, { "category": "external", "summary": "Reference - certbundde; cisco; cveprojectv5; nvd", "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy" }, { "category": "external", "summary": "Reference - cisco", "url": "https://www.cisco.com/go/psirt" }, { "category": "external", "summary": "Reference - cisco", "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html" }, { "category": "external", "summary": "Reference - cisco", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html" }, { "category": "external", "summary": "Reference - cisco", "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwq36774" }, { "category": "external", "summary": "Reference - cisco", "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwq36834" }, { "category": "external", "summary": "Reference - cisco", "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes" }, { "category": "external", "summary": "Reference - cisco", "url": "https://software.cisco.com/download/home/286331949/type/286319537/release/COP-Files" }, { "category": "external", "summary": "Reference - cisco", "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html" }, { "category": "external", "summary": "Reference - cisco", "url": "https://www.cisco.com/c/en/us/support/index.html" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1388.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-1388" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-2857054", "CSAFPID-2857055", "CSAFPID-2857056", "CSAFPID-2857057", "CSAFPID-2857058", "CSAFPID-2857059", "CSAFPID-2857060", "CSAFPID-2857061", "CSAFPID-2857062", "CSAFPID-2857063", "CSAFPID-2857064", "CSAFPID-2857065", "CSAFPID-2857066", "CSAFPID-2857067", "CSAFPID-2857068", "CSAFPID-2857069", "CSAFPID-2857070", "CSAFPID-2857071", "CSAFPID-2857072", "CSAFPID-5453105", "CSAFPID-5453106", "CSAFPID-5455970", "CSAFPID-5455972" ] } ], "title": "CVE-2026-20034" } ] }