{ "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-2026-4211", "tracking": { "current_release_date": "2026-03-21T13:59:03.013615Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-4211", "initial_release_date": "2026-03-15T15:58:23.679316Z", "revision_history": [ { "date": "2026-03-15T15:58:23.679316Z", "number": "1", "summary": "NCSC Score created." }, { "date": "2026-03-16T04:38:48.766797Z", "number": "2", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (20).| Exploits created (1).| References created (4).| CWES updated (1)." }, { "date": "2026-03-16T04:38:59.699008Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-03-16T14:38:24.741743Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (5).| CWES updated (1)." }, { "date": "2026-03-16T14:38:27.045261Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-16T14:51:21.463033Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-16T14:51:23.888375Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-16T15:38:50.076567Z", "number": "8", "summary": "Unknown change." }, { "date": "2026-03-20T09:26:35.484481Z", "number": "9", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:26:38.326431Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-03-21T13:58:26.263250Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (20).| Product Identifiers created (20).| Exploits created (1).| References created (5).| CWES updated (1)." }, { "date": "2026-03-21T13:58:35.567388Z", "number": "12", "summary": "NCSC Score updated." } ], "status": "interim", "version": "12" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828805" } } ], "category": "product_name", "name": "DNR-202L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859083", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dnr-202l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNR-202l Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828811" } } ], "category": "product_name", "name": "DNR-322L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828816" } } ], "category": "product_name", "name": "DNR-326" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859084", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dnr-326_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNR-326 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828821" } } ], "category": "product_name", "name": "DNS-1100-4" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859085", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-1100-4_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-1100-4 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828804" } } ], "category": "product_name", "name": "DNS-120" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859086", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-120_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-120 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828822" } } ], "category": "product_name", "name": "DNS-1200-05" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859087", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-1200-05_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-1200-05 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828823" } } ], "category": "product_name", "name": "DNS-1550-04" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859088", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-1550-04_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-1550-04 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828806" } } ], "category": "product_name", "name": "DNS-315L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859089", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-315l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-315l Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828807" } } ], "category": "product_name", "name": "DNS-320" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859090", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-320_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-320 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828808" } } ], "category": "product_name", "name": "DNS-320L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828809" } } ], "category": "product_name", "name": "DNS-320LW" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859091", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-320l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-320l Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859092", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-320lw_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-320lw Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828810" } } ], "category": "product_name", "name": "DNS-321" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859093", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-321_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-321 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828812" } } ], "category": "product_name", "name": "DNS-323" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859095", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-323_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-323 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828813" } } ], "category": "product_name", "name": "DNS-325" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859096", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-325_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-325 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828814" } } ], "category": "product_name", "name": "DNS-326" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859097", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-326_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-326 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828815" } } ], "category": "product_name", "name": "DNS-327L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859098", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-327l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-327l Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828817" } } ], "category": "product_name", "name": "DNS-340L" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859099", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-340l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-340l Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828818" } } ], "category": "product_name", "name": "DNS-343" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859100", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-343_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-343 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828819" } } ], "category": "product_name", "name": "DNS-345" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859101", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-345_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-345 Firmware" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/20260205", "product": { "name": "vers:unknown/20260205", "product_id": "CSAFPID-5828820" } } ], "category": "product_name", "name": "DNS-726-4" }, { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859102", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-726-4_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "DNS-726-4 Firmware" } ], "category": "vendor", "name": "D-Link" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<=2026-02-05", "product": { "name": "vers:unknown/<=2026-02-05", "product_id": "CSAFPID-5859094", "product_identification_helper": { "cpe": "cpe:2.3:o:dlink:dns-322l_firmware:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "dns-322l_firmware" } ], "category": "vendor", "name": "dlink" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-4211", "cwe": { "id": "CWE-121", "name": "Stack-based Buffer Overflow" }, "notes": [ { "category": "description", "text": "A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-4211" }, { "category": "description", "text": "A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-4211" }, { "category": "description", "text": "A weakness has been identified in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Affected by this issue is the function Local_Backup_Info of the file /cgi-bin/local_backup_mgr.cgi. This manipulation of the argument f_idx causes stack-based buffer overflow. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4211" }, { "category": "other", "text": "0.00045", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P", "title": "CVSSV4" }, { "category": "other", "text": "7.4", "title": "CVSSV4 base score" }, { "category": "other", "text": "3.0", "title": "NCSC Score" }, { "category": "other", "text": "Is related to (a version of) an uncommon product", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to a product by vendor D-Link, There is exploit data available from source Cveprojectv5, Is related to CWE-121 (Stack-based Buffer Overflow), Exploit code publicly available, There is exploit data available from source Nvd", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5828804", "CSAFPID-5828805", "CSAFPID-5828806", "CSAFPID-5828807", "CSAFPID-5828808", "CSAFPID-5828809", "CSAFPID-5828810", "CSAFPID-5828811", "CSAFPID-5828812", "CSAFPID-5828813", "CSAFPID-5828814", "CSAFPID-5828815", "CSAFPID-5828816", "CSAFPID-5828817", "CSAFPID-5828818", "CSAFPID-5828819", "CSAFPID-5828820", "CSAFPID-5828821", "CSAFPID-5828822", "CSAFPID-5828823", "CSAFPID-5859083", "CSAFPID-5859084", "CSAFPID-5859085", "CSAFPID-5859086", "CSAFPID-5859087", "CSAFPID-5859088", "CSAFPID-5859089", "CSAFPID-5859090", "CSAFPID-5859091", "CSAFPID-5859092", "CSAFPID-5859093", "CSAFPID-5859094", "CSAFPID-5859095", "CSAFPID-5859096", "CSAFPID-5859097", "CSAFPID-5859098", "CSAFPID-5859099", "CSAFPID-5859100", "CSAFPID-5859101", "CSAFPID-5859102" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-4211" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/4xxx/CVE-2026-4211.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4211" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4211" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-4211" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-4211" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://vuldb.com/?id.351122" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://vuldb.com/?ctiid.351122" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://vuldb.com/?submit.770441" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://www.dlink.com/" }, { "category": "external", "summary": "Reference - nvd", "url": "https://github.com/wudipjq/my_vuln/blob/main/D-Link8/vuln_160/160.md" } ], "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/E:P/RL:X/RC:R", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-5828804", "CSAFPID-5828805", "CSAFPID-5828806", "CSAFPID-5828807", "CSAFPID-5828808", "CSAFPID-5828809", "CSAFPID-5828810", "CSAFPID-5828811", "CSAFPID-5828812", "CSAFPID-5828813", "CSAFPID-5828814", "CSAFPID-5828815", "CSAFPID-5828816", "CSAFPID-5828817", "CSAFPID-5828818", "CSAFPID-5828819", "CSAFPID-5828820", "CSAFPID-5828821", "CSAFPID-5828822", "CSAFPID-5828823", "CSAFPID-5859083", "CSAFPID-5859084", "CSAFPID-5859085", "CSAFPID-5859086", "CSAFPID-5859087", "CSAFPID-5859088", "CSAFPID-5859089", "CSAFPID-5859090", "CSAFPID-5859091", "CSAFPID-5859092", "CSAFPID-5859093", "CSAFPID-5859094", "CSAFPID-5859095", "CSAFPID-5859096", "CSAFPID-5859097", "CSAFPID-5859098", "CSAFPID-5859099", "CSAFPID-5859100", "CSAFPID-5859101", "CSAFPID-5859102" ] } ], "title": "CVE-2026-4211" } ] }