Bug 2405127 (CVE-2025-11677) - CVE-2025-11677 libwebsockets: Use After Free in libwebsockets WebSocket server
Summary: CVE-2025-11677 libwebsockets: Use After Free in libwebsockets WebSocket server
Keywords:
Status: NEW
Alias: CVE-2025-11677
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2405247 2405248 2405249 2405250 2405251
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-20 17:23 UTC by OSIDB Bzimport
Modified: 2025-10-20 22:23 UTC (History)
11 users (show)

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

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-10-20 17:23:42 UTC 
Use After Free in WebSocket server implementation in lws_handshake_server in warmcat libwebsockets may allow an attacker, in specific configurations where the user provides a callback function that handles LWS_CALLBACK_HTTP_CONFIRM_UPGRADE, to achieve denial of service.
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