{"id":"CVE-2026-85090","title":"FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction","summary":"FreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame ge…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","cwe":["CWE-125"],"vendor":"freerdp","product":"freerdp","affected":["freerdp < 3.31.0"],"patched":["freerdp 3.31.0"],"published":"2026-09-03","updated":"2026-09-09","sourceUpdated":"2026-09-09T19:22:08.110","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-85090","references":[{"url":"https://github.com/FreeRDP/FreeRDP","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/blob/3.30.0/libfreerdp/primitives/prim_YUV.c","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/commit/d0a481cb74ab57bca24791fe11b89464a332d3f1","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/releases/tag/3.31.0","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9x","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.31.0-heap-out-of-bounds-read-via-avc444","label":"disclosure@vulncheck.com"},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-57h7-vw2f-2f9x","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00314,"epssPercentile":0.24557,"ingestedAt":"2026-09-05T20:44:35.881Z","slug":"CVE-2026-85090","body":"## Overview\n\nFreeRDP before 3.31.0 contains a heap out-of-bounds read vulnerability in the general_ChromaV1ToYUV444 function during AVC444 chroma plane reconstruction. A malicious RDP server can craft a RFX_AVC444_BITMAP_STREAM with specific frame geometry to trigger an out-of-bounds memory read past the allocated luma plane.\n\n## Affected\n\n- `freerdp < 3.31.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `freerdp 3.31.0`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}