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.
References
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-8g87-6pvc-wh99
ExploitVendor Advisory
CVSS impact metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
5.9 · Medium
Information
Source identifier
Vulnerability status
Analyzed
Published
2026-01-14T18:16:42.490Z
6 days agoLast modified
2026-01-20T18:43:31.587Z
9 hours ago