Description

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.

INFO

Published Date :

2025-10-20T13:41:10.787Z

Last Modified :

2025-10-20T13:54:19.569Z

Source :

Nozomi
AFFECTED PRODUCTS

The following products are affected by CVE-2025-11677 vulnerability.

Vendors Products
Warmcat
  • Libwebsockets
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-11677.

URL Resource
https://libwebsockets.org/git/libwebsockets/commit?id=2f082ec31261f556969160143ba94875d783971a cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-11677 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-11677 cve-icon
https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11677 cve-icon cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact