CVE-2020-15999 — Google Chrome FreeType

Google Chrome FreeType Heap Buffer Overflow Vulnerability

Added to KEV

2021-11-03

Federal due date

2021-11-17

Vendor

Google

Product

Chrome FreeType

EPSS

99.8th percentile (score 0.930, as of 2026-06-08)

NVD CVSS v3.1

—

Ransomware use

Unknown

Upstream

https://nvd.nist.gov/vuln/detail/CVE-2020-15999

CISA short description

Google Chrome uses FreeType, an open-source software library to render fonts, which contains a heap buffer overflow vulnerability in the function Load_SBit_Png when processing PNG images embedded into fonts. This vulnerability is part of an exploit chain with CVE-2020-17087 on Windows and CVE-2020-16010 on Android.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.