#VU105715 Out-of-bounds write in FreeType - CVE-2025-27363

Vulnerability identifier: #VU105715

Vulnerability risk: High

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2025-27363

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
FreeType
Universal components / Libraries / Libraries used by multiple products

Vendor: freetype.org

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can pass a specially crafted font to the application that is using an affected version of the library, trigger an out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

FreeType: 1.3.1 - 2.13.0

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External links
https://www.openwall.com/lists/oss-security/2025/03/13/1
https://www.openwall.com/lists/oss-security/2025/03/13/11
https://www.openwall.com/lists/oss-security/2025/03/13/12
https://www.openwall.com/lists/oss-security/2025/03/13/2
https://www.openwall.com/lists/oss-security/2025/03/13/3
https://www.openwall.com/lists/oss-security/2025/03/13/8
https://www.facebook.com/security/advisories/cve-2025-27363

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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?

Yes. This vulnerability is being exploited in the wild.