VULNERABILITY INTELLIGENCE
CVE-2025-11680
EPSS probability0.39%
CISA KEVNot currently listed
Published2025-10-20
Last modified2026-10-08
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.
Weakness classification
- prodsec@nozominetworks.com: CWE-787