CVE-2026-22851 (GCVE-0-2026-22851)

Vulnerability from cvelistv5 – Published: 2026-01-14 17:43 – Updated: 2026-01-14 21:03
VLAI
Title
FreeRDP RDPGFX ResetGraphics race leads to use-after-free in SDL client (sdl->primary)
Summary
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.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 21:03 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-416 - Use After Free
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
FreeRDP FreeRDP Affected: < 3.20.1
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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