Bug 2567740 (CVE-2026-121959) - CVE-2026-121959 freerdp: freerdp: Denial of Service via infinite loop on truncated WebSocket frame
Summary: CVE-2026-121959 freerdp: freerdp: Denial of Service via infinite loop on trun...
Keywords:
Status: NEW
Alias: CVE-2026-121959
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: 2026-11-05 22:22 UTC by OSIDB Bzimport
Modified: 2026-11-06 12:52 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-11-05 22:22:25 UTC 
FreeRDP before 3.32.2 contains an infinite loop vulnerability in websocket_context_read that fails to handle a zero BIO result with payload outstanding. A malicious RD Gateway can send a truncated WebSocket frame followed by a TLS close_notify, causing a client thread to spin and consume CPU until killed.
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