Race Condition Affecting freerdp/freerdp package, versions [,3.20.1)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-UNMANAGED-FREERDPFREERDP-14947395
- published16 Jan 2026
- disclosed14 Jan 2026
- creditKim Dong Han
Introduced: 14 Jan 2026
CVE-2026-22851 (opens in a new tab)How to fix?
Upgrade freerdp/freerdp to version 3.20.1 or higher.
Overview
Affected versions of this package are vulnerable to Race Condition between the RDPGFX dynamic virtual channel thread and the SDL render thread during the ResetGraphics handling. An attacker can cause a heap use-after-free by triggering access to a freed pointer in sdl->primary through concurrent operations.