{ "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-2026-23246", "tracking": { "current_release_date": "2026-04-02T15:39:49.090225Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-23246", "initial_release_date": "2026-03-18T10:38:43.497725Z", "revision_history": [ { "date": "2026-03-18T10:38:43.497725Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| Products created (6).| Products connected (4).| References created (4)." }, { "date": "2026-03-18T10:38:47.588715Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-18T11:36:34.351837Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-03-18T12:25:27.975495Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (4)." }, { "date": "2026-03-18T12:25:37.001280Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-03-18T13:05:41.684539Z", "number": "6", "summary": "Source connected.| CVE status created. (valid)| Products connected (1).| References created (13)." }, { "date": "2026-03-18T13:05:44.986617Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-18T16:09:56.204386Z", "number": "8", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-18T16:10:06.972835Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-03-18T18:44:16.434415Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-03-19T00:27:48.964791Z", "number": "11", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (13).| Product Identifiers created (5).| References created (3).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-03-19T00:27:52.129615Z", "number": "12", "summary": "NCSC Score updated." }, { "date": "2026-03-19T06:44:14.597916Z", "number": "13", "summary": "Description created for source." }, { "date": "2026-03-19T12:20:03.827763Z", "number": "14", "summary": "Source connected.| CVE status created. (valid)| Description created for source.| Products connected (1)." }, { "date": "2026-03-19T12:20:06.809116Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:55:41.475046Z", "number": "16", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-20T09:55:44.528222Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-03-20T18:30:30.646767Z", "number": "18", "summary": "CVSS created." }, { "date": "2026-03-20T18:30:36.411803Z", "number": "19", "summary": "NCSC Score updated." }, { "date": "2026-03-25T10:40:18.179706Z", "number": "20", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products created (1).| Products connected (11).| References created (5)." }, { "date": "2026-03-25T10:40:21.593495Z", "number": "21", "summary": "NCSC Score updated." }, { "date": "2026-03-25T10:56:12.564141Z", "number": "22", "summary": "NCSC Score updated." }, { "date": "2026-03-25T11:27:52.196941Z", "number": "23", "summary": "Source created.| CVE status created. (valid)| Description created for source.| References created (5)." }, { "date": "2026-03-28T12:19:57.809513Z", "number": "24", "summary": "Product Remediations created (1)." }, { "date": "2026-03-28T12:19:59.818015Z", "number": "25", "summary": "NCSC Score updated." }, { "date": "2026-04-02T09:56:03.915023Z", "number": "26", "summary": "Products connected (1).| References created (1)." }, { "date": "2026-04-02T09:56:10.502952Z", "number": "27", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:25:56.812561Z", "number": "28", "summary": "CVSS created." }, { "date": "2026-04-02T15:26:02.380827Z", "number": "29", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:39:30.858749Z", "number": "30", "summary": "CVSS created." }, { "date": "2026-04-02T15:39:39.041724Z", "number": "31", "summary": "NCSC Score updated." } ], "status": "interim", "version": "31" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/unknown", "product": { "name": "vers:unknown/unknown", "product_id": "CSAFPID-1330296", "product_identification_helper": { "cpe": "cpe:/o:amazon:linux_2:-" } } } ], "category": "product_name", "name": "Amazon Linux 2" } ], "category": "vendor", "name": "Amazon" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:git/8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c|<162d331d833dc73a3e905a24c44dd33732af1fc5", "product": { "name": "vers:git/8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c|<162d331d833dc73a3e905a24c44dd33732af1fc5", "product_id": "CSAFPID-5843427" } }, { "category": "product_version_range", "name": "vers:git/8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c|<650981e718e68005ca2760a6358134b8a98ebea4", "product": { "name": "vers:git/8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c|<650981e718e68005ca2760a6358134b8a98ebea4", "product_id": "CSAFPID-5904899" } }, { "category": "product_version_range", "name": "vers:git/8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c|= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-23246" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\n\nlink_id is taken from the ML Reconfiguration element (control & 0x000f),\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\nlink_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-23246" }, { "category": "description", "text": "A flaw was found in the Linux kernel's mac80211 Wi-Fi subsystem. This vulnerability occurs in the ieee80211_ml_reconfiguration function when processing a Multi-Link (ML) Reconfiguration element. An attacker can provide a crafted link_id value that is not properly bounds-checked, leading to an out-of-bounds write on the stack. This can result in a denial of service (DoS), potentially making the system unavailable.", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-23246" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-23246" }, { "category": "description", "text": "wifi: mac80211: bounds-check link\\_id in ieee80211\\_ml\\_reconfiguration", "title": "microsoft - https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\n\nlink_id is taken from the ML Reconfiguration element (control & 0x000f),\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\nlink_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23246.json" }, { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration\n\nlink_id is taken from the ML Reconfiguration element (control & 0x000f),\nso it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS\n(15) elements, so index 15 is out-of-bounds. Skip subelements with\nlink_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds\nwrite.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23246" }, { "category": "other", "text": "0.00018", "title": "EPSS" }, { "category": "other", "text": "4.8", "title": "NCSC Score" }, { "category": "other", "text": "VENDOR FIX as product remediation category", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to a product by vendor Linux, Is related to (a version of) product Linux Kernel", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-1287503", "CSAFPID-5843424", "CSAFPID-5843425", "CSAFPID-5843426", "CSAFPID-5843427", "CSAFPID-1330297", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-1453376", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-5761981", "CSAFPID-5904899", "CSAFPID-1330296" ], "known_not_affected": [ "CSAFPID-1287504", "CSAFPID-5776393", "CSAFPID-5815258", "CSAFPID-5843428", "CSAFPID-5843429", "CSAFPID-2036022", "CSAFPID-2036023", "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1453377", "CSAFPID-1453378", "CSAFPID-1453379", "CSAFPID-1453380", "CSAFPID-5904647" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23246" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23246.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23246" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23246" }, { "category": "external", "summary": "Source - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0774.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-23246" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-23246" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-23246" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-23246.json" }, { "category": "external", "summary": "Source - microsoft", "url": "https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2026-Mar" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/23xxx/CVE-2026-23246.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-23246" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/bfde158d5d1322c0c2df398a8d1ccce04943be2e" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/f35ceec54d48e227fa46f8f97fd100a77b8eab15" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/d58d71c2167601762351962b9604808d3be94400" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/162d331d833dc73a3e905a24c44dd33732af1fc5" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0774.json" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0774" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031813-CVE-2025-71265-00ce@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2025-71266-d35d@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2025-71267-2a56@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2026-23242-a8b5@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2026-23243-b88e@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031817-CVE-2026-23244-9738@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031817-CVE-2026-23245-ac26@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031817-CVE-2026-23246-d29e@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031818-CVE-2026-23247-07b3@gregkh/" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://lore.kernel.org/linux-cve-announce/2026031818-CVE-2026-23248-d0e1@gregkh/" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-23246" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23246" }, { "category": "external", "summary": "Reference - redhat", "url": "https://lore.kernel.org/linux-cve-announce/2026031817-CVE-2026-23246-d29e@gregkh/T" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://git.kernel.org/stable/c/650981e718e68005ca2760a6358134b8a98ebea4" }, { "category": "external", "summary": "Reference - certbundde", "url": "https://alas.aws.amazon.com/AL2/ALAS2KERNEL-5.10-2026-115.html" } ], "remediations": [ { "category": "vendor_fix", "details": "CBL-Mariner Releases", "product_ids": [ "CSAFPID-5761981" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-1287503", "CSAFPID-1330296", "CSAFPID-1330297", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-1453376", "CSAFPID-1453381", "CSAFPID-1453382", "CSAFPID-2858634", "CSAFPID-2858635", "CSAFPID-5761981", "CSAFPID-5843424", "CSAFPID-5843425", "CSAFPID-5843426", "CSAFPID-5843427", "CSAFPID-5904899" ] } ], "title": "CVE-2026-23246" } ] }