#VU117945 Out-of-bounds write in libwebsockets - CVE-2025-11680

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Main Vulnerability Database Vulnerabilities #VU117945

#VU117945 Out-of-bounds write in libwebsockets - CVE-2025-11680

Published: November 3, 2025


Vulnerability identifier: #VU117945
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-11680
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
libwebsockets
Software vendor:
libwebsockets.org

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error within the lws_upng_decode() function in lib/misc/upng.c. A remote attacker can trigger an out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links