CVE-2026-121954

MediumCVSS 6.5/10Last modified Nov 5, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
FreeRDPFreeRDP< 3.32.2

References

Timeline

Published
Nov 4, 2026
Last modified
Nov 5, 2026
NVD status
Analyzed

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CVE-2026-121954: Medium severity, CVSS 6.5 | Vulnix