CVE-2025-11679 — Out-of-bounds Read in libwebsockets PNG parsing
Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to r…
Published: 2025-10-20 · CVSS: 5.9 · CVSS 4.0
Out-of-bounds Read in lws_upng_emit_next_line in warmcat libwebsockets allows, when the LWS_WITH_UPNG flag is enabled during compilation and the HTML display stack is used, to read 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 height dimension.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7