Bug 2565881 (CVE-2026-121395) - CVE-2026-121395 freerdp: FreeRDP: Denial of Service via RemoteFX differential decoder assertion failure
Summary: CVE-2026-121395 freerdp: FreeRDP: Denial of Service via RemoteFX differential...
Keywords:
Status: NEW
Alias: CVE-2026-121395
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-03 15:27 UTC by OSIDB Bzimport
Modified: 2026-11-03 16:18 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-11-03 15:27:20 UTC 
FreeRDP from 3.17.0 before 3.32.2 contains an assertion failure in the RemoteFX differential decoder when verbose WinPR assertions are enabled. A malicious RDP server can send a crafted RemoteFX tile with adjacent LL3 coefficients summing beyond signed 16-bit range to abort the client process.
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