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.
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Score elevated to 9.6 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 9.6 retained for reference. Confidence: HIGH.
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.
November 3, 2020
October 24, 2025
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libfreetype6-udeb (2.6.1-0.1ubuntu2.5) @ xenial | 2026-06-03 | ubuntu |
| ubuntu | libfreetype6 (2.5.2-1ubuntu2.8+esm2) @ trusty | 2026-06-03 | ubuntu |
| redhat | freetype-0:2.9.1-4.el8_1.1 | 2020-11-05 | redhat |
| redhat | freetype-0:2.9.1-4.el8_2.1 | 2020-11-05 | redhat |
| redhat | freetype-0:2.9.1-4.el8_3.1 | 2020-11-05 | redhat |
| redhat | freetype-0:2.9.1-4.el8_0.1 | 2020-11-05 | redhat |
| redhat | freetype-0:2.8-14.el7_9.1 | 2020-11-04 | redhat |
| redhat | chromium-browser-0:86.0.4240.111-1.el6_10 | 2020-10-26 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| CefSharp.Common | 31.0.0-pre1 ... 85.3.121-pre (85 versions) | 85.3.130 | — |
| CefSharp.WinForms | 1.25.3 ... 85.3.121-pre (84 versions) | 85.3.130 | — |
| CefSharp.Wpf | 1.25.2-perlun0 ... 85.3.121-pre (92 versions) | 85.3.130 | — |
| CefSharp.Wpf.HwndHost | 83.4.20-pre, 84.4.10, 85.3.121 | 85.3.130 | — |
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
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.
RHSA-2020:4351 — Important
RHSA-2020:4907 — Important
RHSA-2020:4949 — Important
RHSA-2020:4950 — Important
RHSA-2020:4951 — Important
RHSA-2020:4952 — Important
FreeType vulnerability
FreeType vulnerability
Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.
Working exploit code is in the public domain (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
Todos los materiales necesarios para la PoC en Chrome y ftview
Open source ↗CVE-2020-15999
Open source ↗See which npm, PyPI, Go, and Maven packages are affected by CVE-2020-15999
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msrc · redhat
CWE-120 · CWE-787