← CVE Radar
CVE-2026-121954FreeRDP before 3.32.2 Heap Out-of-Bounds Write in Planar Codec
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.
7.1 HIGHEPSS 0.35%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 7.1 | HIGH | 4.0VulnCheck (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N |
| 6.5 | MEDIUM | 3.1VulnCheck (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Details
- CVE ID
- CVE-2026-121954
- Status
- Analyzed
- Assigner (CNA)
- VulnCheck
- Published
- Nov 4, 2026
- Last modified
- 2026-11-05 19:31 UTC
- Weaknesses
- CWE-787 · Out-of-bounds Write
Affected Products
As published by the CNA in the CVE record.
FreeRDPFreeRDP1 version range
- before 3.32.2