Bug 2565970 (CVE-2026-121396) - CVE-2026-121396 freerdp: FreeRDP: Denial of Service via malformed RTS authentication padding
Summary: CVE-2026-121396 freerdp: FreeRDP: Denial of Service via malformed RTS authent...
Keywords:
Status: NEW
Alias: CVE-2026-121396
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 17:05 UTC by OSIDB Bzimport
Modified: 2026-11-04 13:24 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-11-03 17:05:41 UTC 
FreeRDP clients from 3.0.0 before 3.32.2 built with verbose WinPR assertions contain a reachable assertion in rts_read_auth_verifier triggered by malformed RTS padding. Attackers controlling an RD Gateway can send a crafted RPC-over-HTTP RTS PDU with inconsistent authentication padding to abort the connecting client process.
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