CVE-2026-121402

MEDIUM 6.5

FreeRDP before 3.32.2 X11 Client Crash via Zero-Width RDPGFX ResetGraphics

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

FreeRDP before 3.32.2 contains a NULL pointer dereference vulnerability that allows malicious RDP servers to crash xfreerdp clients by sending a zero-width RDPGFX ResetGraphics PDU. The failed resize in gdi_resize_ex leaves the primary display null without ending the session, so a later bitmap update crashes the client in gdi_Bitmap_Paint.

CWE	CWE-476
Vendor	freerdp
Product	freerdp
Published	Nov 3, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FreeRDP / FreeRDP

0 < 3.32.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-c426-ppvf-jpfg vulncheck.com: https://www.vulncheck.com/advisories/freerdp-before-3.32.2-x11-client-crash-via-zero-width-rdpgfx-resetgraphics

Credits

Kushalkhemka mayank-jangid-moon opensec-intelligence