{"id":"CVE-2026-89792","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: prevent out-of-bounds reads in share config responses\n\nValidate IPC share configuration payload sizes before consuming\nvariable-length fields","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: prevent out-of-bounds reads in share config responses\n\nValidate IPC share configuration payload sizes before consuming\nvariable-length fields. Bound veto list pa…","severity":"high","cvss":7.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= a677ebd8ca2f2632ccdecbad7b87641274e15aac < 61a8d06600c8c397f9a7e01940479d4c94a82f5f","Linux >= a677ebd8ca2f2632ccdecbad7b87641274e15aac < f25e93768fcc5d8287e50b1ec52a42e4c276df34","Linux 88b7f1143b15b29cccb8392b4f38e75b7bb3e300","Linux 51a6c2af9d20203ddeeaf73314ba8854b38d01bd","Linux a637fabac554270a851033f5ab402ecb90bc479c","Linux 76af689a45aa44714b46d1a7de4ffdf851ded896","Linux >= 5.15.157 < 5.16","Linux >= 6.1.85 < 6.2","Linux >= 6.6.26 < 6.7","Linux >= 6.8.5 < 6.9","Linux 6.9"],"published":"2026-09-16","updated":"2026-09-21","sourceUpdated":"2026-09-21T14:17:26.597","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89792","references":[{"url":"https://git.kernel.org/stable/c/61a8d06600c8c397f9a7e01940479d4c94a82f5f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cd2bcee450bc94770be56c0b896c1a1dc6838bd8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f25e93768fcc5d8287e50b1ec52a42e4c276df34","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ffa507f5f774cb4d45136b106989ebc051361263","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0015,"epssPercentile":0.04525,"ingestedAt":"2026-09-16T08:52:29.590Z","slug":"CVE-2026-89792","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: prevent out-of-bounds reads in share config responses\n\nValidate IPC share configuration payload sizes before consuming\nvariable-length fields. Bound veto list parsing and account for\nthe separator byte when deriving the path length.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205255,"id":"CVE-2026-89792","ts":1789570705951,"field":"cvss","old":null,"new":"7.1"},{"seq":205254,"id":"CVE-2026-89792","ts":1789570705951,"field":"severity","old":"none","new":"high"}]}