FontForge SFD File Parsing Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of SFD files. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-28198.

Amazon Linux will not provide fixes for: CVE-2025-15271, CVE-2025-15272, CVE-2025-15273, CVE-2025-15274, CVE-2025-15276, CVE-2025-15277, CVE-2025-15278, CVE-2025-15280. Amazon Linux has analyzed these CVEs and found that they require user interaction to exploit (opening malicious font files). The upstream FontForge project has explicitly stated in their community guidelines that security issues related to untrusted input are not a priority and will not be fixed. FontForge is designed to work with trusted font files, and customers are advised to not use font files from untrusted sources. Due to the upstream project's security stance, their decision to defer fixes indefinitely, and the lack of accessible reproducers, Amazon Linux will not be providing fixes at this time.