CVE DATABASE / CVE-2020-15999
CVE-2020-15999
Google Chrome FreeType Heap Buffer Overflow Vulnerability
CVSS 9.6 · CRITICAL
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2021-11-03.
Federal remediation due 2021-11-17.
Required action: Apply updates per vendor instructions.
Summary
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 3.1 breakdown
| Base score | 9.6 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | REQUIRED |
| Scope | CHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Google chromeFreetype freetypeDebian debian linuxFedoraproject fedoraOpensuse backports sleNetapp ontap select deploy administration utility
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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
- https://security.netapp.com/advisory/ntap-20240812-0001/
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-15999
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-24. Always verify against the vendor advisory before acting.