HIGH 7.1 NVD
CVE-2026-121954
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 reallo
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.
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697
- https://www.vulncheck.com/advisories/freerdp-before-3.32.2-heap-out-of-bounds-write-in-pla
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-fg78-v8j5-8697
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-11-04 via NVD.
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