Remote code execution in FreeType library

Published: 2020-10-20 | Updated: 2021-07-01
Risk Critical
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-15999
Exploitation vector Network
Public exploit This vulnerability is being exploited in the wild.
Vulnerable software
Universal components / Libraries / Libraries used by multiple products


Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

Updated: 20.10.2020

Vulnerability marked as 0day, raised severity level to critical.

1) Heap-based buffer overflow

EUVDB-ID: #VU47741

Risk: Critical

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15999

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in freetype library when processing TTF files. A remote attacker can pass specially crafted TTF file with PNG sbit glyphs to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, this vulnerability is being actively exploited in the wild.


Install updates from vendor's website.

Vulnerable software versions

FreeType: 2.0 - 2.10.3

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.