Google Chromium WebP
YES - ON THE CISA KEV LIST
CVE-2023-4863
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
overdue since 2023-10-04
Google: 77 entries (4.3% of all KEV entries are from this vendor); 10 added in 2026.
BOD 26-04 note: this is the date printed in the CISA catalog. A federal agency's actual deadline is set by its SSVC tier - Act (3 days), Attend (14 days), Track (60 days), or the next scheduled upgrade - counted from the KEV listing date or the date the vulnerability is identified in its environment, whichever comes first. Use the tier helper on each CVE page for your own window.
Your BOD 26-04 window (SSVC tier helper)
Your remediation window ends:
Description
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.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes
https://chromereleases.googleblog.com/2023/09/stable-channel-update-for-desktop_11.html?m=1; https://nvd.nist.gov/vuln/detail/CVE-2023-4863
References
Other KEV entries for this vendor: Google
- CVE-2026-125350 - Chromium (2026-11-10)
- CVE-2026-111497 - Brotli (2026-10-27)
- CVE-2026-58704 - Pixel (2026-09-16)
- CVE-2026-87491 - Chromium V8 (2026-09-09)
- CVE-2026-85046 - Chromium V8 (2026-09-04)
- CVE-2026-11645 - Chromium V8 (2026-06-09)
- CVE-2026-5281 - Dawn (2026-04-01)
- CVE-2026-3910 - Chromium V8 (2026-03-13)
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