What’s Vulnerable › Vulnerabilities

CVE-2020-15999: Google Chrome FreeType Heap Buffer Overflow Vulnerability

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2021-11-03
• EPSS: 63.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-11-03 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Debian Linux: 10.0
• Fedoraproject Fedora: 31
• FreeType: from 2.6.0 before 2.10.4 — fixed in 2.10.4
• Google Chrome: before 86.0.4240.111 — fixed in 86.0.4240.111
• NetApp ONTAP Select Deploy administration utility: all versions
• openSUSE Backports Sle: 15.0-sp2

How to fix

Upgrade to a fixed version: FreeType 2.10.4; Google Chrome 86.0.4240.111. Check the vendor advisory for mitigations.

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
• https://security.gentoo.org/glsa/202401-19
• https://www.debian.org/security/2021/dsa-4824
• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html
• http://seclists.org/fulldisclosure/2020/Nov/33

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