freerdp3: FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdp_bitmap_planar_context_reset...
CVE-2026-121954 is fixed in freerdp3 on 1 platform by DEBIAN-CVE-2026-121954 (version 3.32.2+dfsg-1), released November 5, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| freerdp3 · Debian 14 | 3.32.2+dfsg-1 | DEBIAN-CVE-2026-121954 | Nov 5, 2026 |
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