CVE-2023-4863
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
Google · Chromium WebP
Vulnerability details
Google Chromium WebP contains a heap-based buffer overflow vulnerability that allows a remote attacker to perform an out-of-bounds memory write via a crafted HTML page. This vulnerability can affect applications that use the WebP Codec.
Added to CISA KEV: 2023-09-13
Ransomware campaign use: Unknown
CISA due date: 2023-10-04
Defensive guidance from CISA
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.
Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC