Bug 2430885 (CVE-2026-23883) - CVE-2026-23883 freerdp: FreeRDP: Arbitrary code execution and denial of service via malicious server
Summary: CVE-2026-23883 freerdp: FreeRDP: Arbitrary code execution and denial of servi...
Keywords:
Status: NEW
Alias: CVE-2026-23883
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2430920 2430921 2430922 2430924 2430923
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-19 18:02 UTC by OSIDB Bzimport
Modified: 2026-01-19 18:53 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-01-19 18:02:10 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, `xf_Pointer_New` frees `cursorPixels` on failure, then `pointer_free` calls `xf_Pointer_Free` and frees it again, triggering ASan UAF. A malicious server can trigger a client‑side use after free, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.
Note You need to log in before you can comment on or make changes to this bug.