Bug 2565962 (CVE-2026-121394) - CVE-2026-121394 freerdp: FreeRDP: Denial of Service via assertion failure in RemoteFX decoder
Summary: CVE-2026-121394 freerdp: FreeRDP: Denial of Service via assertion failure in ...
Keywords:
Status: NEW
Alias: CVE-2026-121394
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 16:59 UTC by OSIDB Bzimport
Modified: 2026-11-04 08:21 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-11-03 16:59:16 UTC 
FreeRDP from 3.11.0 before 3.32.2 contains an assertion failure in the RemoteFX RLGR decoder that allows malicious servers to terminate clients. Attackers controlling an RDP server can send a RemoteFX tileset with RLGR code 32767, triggering a signed narrowing assertion in rfx_rlgr_decode and crashing the client.
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