CVE-2025-11680

N/A

Description

Out-of-bounds Write in unfilter_scanline in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to write past a heap allocated buffer possibly causing a crash, when the user visits an attacker controlled website that contains a crafted PNG file with a big width value that causes an integer overflow which value is used for determining the size of a heap allocation.

CVE Details

CVSS v3.1 ScoreN/A

Published10/20/2025

Last Modified10/21/2025

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-787

References

https://libwebsockets.org/git/libwebsockets/commit?id=2b715249f39291c86443b969a1088d59b6a89b78(prodsec@nozominetworks.com)

https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11680(prodsec@nozominetworks.com)

IOC Correlations

No correlations recorded

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