ACTIVELY EXPLOITED
CVE-2023-4863: Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
| Vendor | |
|---|---|
| Product | Chromium WebP |
| Actively exploited | Yes |
| Added to CISA KEV | 13 Sep 2023 |
| CISA federal deadline | 4 Oct 2023 |
| Weakness (CWE) | CWE-787 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other Google flaws
- CVE-2026-125350: Google Chromium Use-After-Free Vulnerability
- CVE-2026-111497: Google Brotli Unchecked Return Value Vulnerability
- CVE-2026-58704: Google Pixel Improper Authorization Vulnerability
- CVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerability
- CVE-2026-85046: Google Chromium V8 Type Confusion Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.