{"id":"CVE-2026-89898","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: extron-da-hd-4k-plus: add sanity check\n\nAdd check to prevent overflowing msg.msg[] in case the incoming data\nis malformed.","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: extron-da-hd-4k-plus: add sanity check\n\nAdd check to prevent overflowing msg.msg[] in case the incoming data\nis malformed.","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 056f2821b631df2b94d3b017fd1e1eef918ed98d < 00c13b4ab481a09d915d099815cff1b10926ddd9","Linux >= 056f2821b631df2b94d3b017fd1e1eef918ed98d < 673611cc2ab9769929644ce879f7ea34932a3011","Linux >= 056f2821b631df2b94d3b017fd1e1eef918ed98d < 7ad2fec276946a0dedfa54eb26fc38c4fc6a6034","Linux >= 056f2821b631df2b94d3b017fd1e1eef918ed98d < abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3","Linux 6.12"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:18:16.073","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89898","references":[{"url":"https://git.kernel.org/stable/c/00c13b4ab481a09d915d099815cff1b10926ddd9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/673611cc2ab9769929644ce879f7ea34932a3011","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7ad2fec276946a0dedfa54eb26fc38c4fc6a6034","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/abac9820b26b5cfcb01eb79efe2abdd0ac7e07c3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.979Z","epss":0.00379,"epssPercentile":0.29096,"slug":"CVE-2026-89898","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: extron-da-hd-4k-plus: add sanity check\n\nAdd check to prevent overflowing msg.msg[] in case the incoming data\nis malformed.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":205154,"id":"CVE-2026-89898","ts":1789570705494,"field":"cvss","old":null,"new":"8.8"},{"seq":205153,"id":"CVE-2026-89898","ts":1789570705494,"field":"severity","old":"none","new":"high"}]}