CVE-2023-5217
Published 2023-09-28 · Updated 2026-06-17 · Source chrome-cve-admin@google.com
Summary
CVE-2023-5217 is a high-severity (CVSS 8.8) vulnerability in Google Chromium libvpx. CISA added it to the Known Exploited Vulnerabilities catalog on October 2, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by October 23, 2023. CISA does not currently list it as used in ransomware campaigns. Google has 75 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 75 known-exploited Google vulnerabilities →Description
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Google — Chromium libvpx
Name: Google Chromium libvpx Heap Buffer Overflow Vulnerability
Date added: 2023-10-02 · Due: 2023-10-23
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
References
- http://seclists.org/fulldisclosure/2023/Oct/12
- http://seclists.org/fulldisclosure/2023/Oct/16
- http://www.openwall.com/lists/oss-security/2023/09/28/5
- http://www.openwall.com/lists/oss-security/2023/09/28/6
- http://www.openwall.com/lists/oss-security/2023/09/29/1
- http://www.openwall.com/lists/oss-security/2023/09/29/11
- http://www.openwall.com/lists/oss-security/2023/09/29/12
- http://www.openwall.com/lists/oss-security/2023/09/29/14