ACTIVELY EXPLOITED

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

Facts
VendorGoogle
ProductChrome FreeType
Actively exploitedYes
Added to CISA KEV3 Nov 2021
CISA federal deadline17 Nov 2021
Weakness (CWE)CWE-787

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

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.

SOURCES

Other Google flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.