CVE-2020-15999
Published 2020-11-03 · Updated 2026-06-17 · Source chrome-cve-admin@google.com
Summary
CVE-2020-15999 is a critical-severity (CVSS 9.6) vulnerability in Google Chrome FreeType. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by November 17, 2021. CISA does not currently list it as used in ransomware campaigns. Google has 76 vulnerabilities in the KEV catalog, 0 of them linked to ransomware.
All 76 known-exploited Google vulnerabilities →Description
Heap buffer overflow in Freetype in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CISA Known-Exploited Vulnerability
Product: Google — Chrome FreeType
Name: Google Chrome FreeType Heap Buffer Overflow Vulnerability
Date added: 2021-11-03 · Due: 2021-11-17
Required action: Apply updates per vendor instructions.
References
- http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html
- http://seclists.org/fulldisclosure/2020/Nov/33
- https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html
- https://crbug.com/1139963
- https://googleprojectzero.blogspot.com/p/rca-cve-2020-15999.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J3QVIGAAJ4D62YEJAJJWMCCBCOQ6TVL7/
- https://security.gentoo.org/glsa/202011-12
- https://security.gentoo.org/glsa/202012-04