{"id":"CVE-2026-56997","title":"In Av1DecodeFrameTag of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check","summary":"In Av1DecodeFrameTag of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not n…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-787"],"vendor":"google","product":"android","affected":["android"],"published":"2026-09-15","updated":"2026-09-18","sourceUpdated":"2026-09-18T17:33:52.440","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56997","references":[{"url":"https://source.android.com/docs/security/bulletin/pixel/2026/2026-09-01","label":"dsap-vuln-management@google.com"}],"tags":["nvd","cve.org"],"epss":0.00277,"epssPercentile":0.20339,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-15T21:05:39.321903Z"},"ingestedAt":"2026-09-15T18:41:59.156Z","slug":"CVE-2026-56997","body":"## Overview\n\nIn Av1DecodeFrameTag of vp9hwd_headers.cc, there is a possible out-of-bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n## Affected\n\n- `android`\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":204642,"id":"CVE-2026-56997","ts":1789508725499,"field":"cvss","old":null,"new":"8.8"},{"seq":204641,"id":"CVE-2026-56997","ts":1789508725499,"field":"severity","old":"none","new":"high"}]}