Is there a public exploit for CVE-2026-121954?

No public exploit for CVE-2026-121954 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-121954?

CVE-2026-121954 scores CVSS 7.1 (v4.0), rated high.

What does CVE-2026-121954 affect?

CVE-2026-121954 affects FreeRDP FreeRDP.

7.1 High

FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdpbitmapplanarcontextreset commits new dimensions…

CVE-2026-121954

FreeRDP before 3.32.2 has a heap out-of-bounds write in the planar codec because freerdpbitmapplanarcontextreset 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.

Assessment

CVSS: 7.1 (v4.0)
Severity: High
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 4 November 2026
Last updated: 4 November 2026
Affected: FreeRDP · FreeRDP
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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