Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-22851

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a race condition between the RDPGFX dynamic virtual channel thread and the SDL render thread leads to a heap use-after-free. Specifically, an escaped pointer to sdl->primary (SDL_Surface) is accessed after it has been freed during RDPGFX ResetGraphics handling. This vulnerability is fixed in 3.20.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 15.7%
CVSS Severity
CVSS v3 Score 5.9
Products affected by CVE-2026-22851


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