{"id":"CVE-2026-121954","published":"2026-11-04T16:17:47.890","lastModified":"2026-11-04T19:17:36.083","description":"FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset commits new dimensions before buffer reallocation succeeds, and a failed ResetGraphics is only logged. A malicious RDP server can send an oversized ResetGraphics PDU, then a GFX PLANAR command, to corrupt client heap memory and crash the client.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwes":["CWE-787"],"vendors":[],"products":[],"references":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697","tags":[]},{"url":"https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-out-of-bounds-write-in-planar-codec","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697","tags":[]}],"exploitRefs":[{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697","tags":[]},{"url":"https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697","tags":[]}],"hasPoc":true,"ai":null}