{"id":"CVE-2026-89610","title":"ntfs: verify run length exceeding volume boundary","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: verify run length exceeding volume boundary\n\nThe mapping pairs decoder validates that the starting LCN is within the\nvolume but does not check if the run extends …","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-787"],"vendor":"Linux","product":"Linux","affected":["Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6e844d4b82434a781b80d02145fd1b17cf90e3c3","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fea9e4488f384c0ef1c0e3d96b565127c1b98447","Linux < 7.2.4","Linux (all versions)"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:49:42.613Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89610","references":[{"url":"https://git.kernel.org/stable/c/6e844d4b82434a781b80d02145fd1b17cf90e3c3"},{"url":"https://git.kernel.org/stable/c/fea9e4488f384c0ef1c0e3d96b565127c1b98447"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89610.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89610"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532418"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89610"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89610"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89610.mbox"}],"tags":["cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00553,"epssPercentile":0.46011,"scores":{"cna":9.8,"vendor":5.5},"ingestedAt":"2026-09-14T15:23:07.474Z","slug":"CVE-2026-89610","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nntfs: verify run length exceeding volume boundary\n\nThe mapping pairs decoder validates that the starting LCN is within the\nvolume but does not check if the run extends beyond the volume boundary.\n\nA malformed NTFS image with a crafted mapping pairs array could cause\nthe kernel to access memory beyond the volume boundary, potentially leading\nto memory corruption and privilege escalation.\n\nAdd validation to ensure lcn + length stays within nr_clusters.\n\n## Affected\n\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6e844d4b82434a781b80d02145fd1b17cf90e3c3`\n- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fea9e4488f384c0ef1c0e3d96b565127c1b98447`\n- `Linux < 7.2.4`\n- `Linux (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-15 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89610.json)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":53.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":224675,"id":"CVE-2026-89610","ts":1792401468643,"field":"cvss","old":"5.5","new":"9.8"},{"seq":224674,"id":"CVE-2026-89610","ts":1792401468643,"field":"severity","old":"medium","new":"critical"},{"seq":203917,"id":"CVE-2026-89610","ts":1789490221531,"field":"cvss","old":"7","new":"5.5"},{"seq":203916,"id":"CVE-2026-89610","ts":1789490221531,"field":"severity","old":"high","new":"medium"},{"seq":203013,"id":"CVE-2026-89610","ts":1789403733348,"field":"cvss","old":"9.8","new":"7"},{"seq":203012,"id":"CVE-2026-89610","ts":1789403733348,"field":"severity","old":"critical","new":"high"},{"seq":197863,"id":"CVE-2026-89610","ts":1789384320719,"field":"cvss","old":"7","new":"9.8"},{"seq":197862,"id":"CVE-2026-89610","ts":1789384320719,"field":"severity","old":"high","new":"critical"},{"seq":183733,"id":"CVE-2026-89610","ts":1789356677149,"field":"cvss","old":"9.8","new":"7"},{"seq":183732,"id":"CVE-2026-89610","ts":1789356677149,"field":"severity","old":"critical","new":"high"},{"seq":153438,"id":"CVE-2026-89610","ts":1789285350513,"field":"cvss","old":null,"new":"9.8"},{"seq":153437,"id":"CVE-2026-89610","ts":1789285350513,"field":"severity","old":"none","new":"critical"},{"seq":147253,"id":"CVE-2026-89610","ts":1789270204643,"field":"cvss","old":null,"new":"7"},{"seq":147252,"id":"CVE-2026-89610","ts":1789270204643,"field":"severity","old":"none","new":"high"},{"seq":109006,"id":"CVE-2026-89610","ts":1789183729924,"field":"cvss","old":null,"new":"7"},{"seq":109005,"id":"CVE-2026-89610","ts":1789183729924,"field":"severity","old":"none","new":"high"}]}