VULNERABILITY INTELLIGENCE

CVE-2026-22851

CVSS score5.9 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-01-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

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.

Weakness classification

  • security-advisories@github.com: CWE-362

Primary references