PT-2025-42759 · Unknown+3 · Libwebsockets+3
CVE-2025-11677
·
Published
2025-10-20
·
Updated
2026-02-11
CVSS v3.1
7.6
High
| Vector | AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L |
Name of the Vulnerable Software and Affected Versions
libwebsockets (affected versions not specified)
Description
A use-after-free issue exists in the WebSocket server implementation within the
lws handshake server function of libwebsockets. This can lead to a denial of service if an attacker exploits specific configurations where a user-provided callback function handles LWS CALLBACK HTTP CONFIRM UPGRADE.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Ubuntu
Libwebsockets