ZDI-25-1187: (0Day) 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.
Other sources
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 ZDI has assigned a CVSS rating of 7.8. The following CVEs are assigned: CVE-2025-15276.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-1187?
The ZDI-25-1187 vulnerability is considered critical as it allows remote attackers to execute arbitrary code.
How do I fix ZDI-25-1187?
To fix ZDI-25-1187, ensure that you update FontForge to the latest version where the vulnerability has been patched.
What type of attack does ZDI-25-1187 facilitate?
ZDI-25-1187 facilitates remote code execution attacks that require user interaction to exploit.
What products are affected by ZDI-25-1187?
ZDI-25-1187 affects installations of FontForge.
Is user interaction required to exploit ZDI-25-1187?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file.