ZDI-25-1194: (0Day) FontForge SFD File Parsing Improper Validation of Array Index 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 a write past the end of an allocated array. An attacker can leverage this vulnerability to execute code in the context of the current user.
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 8.8. The following CVEs are assigned: CVE-2025-15270.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-25-1194?
The severity of ZDI-25-1194 is classified as critical due to the potential for remote code execution by attackers.
How do I fix ZDI-25-1194?
To fix ZDI-25-1194, update FontForge to the latest version where the vulnerability has been patched.
What type of vulnerability is ZDI-25-1194?
ZDI-25-1194 is a remote code execution vulnerability that can be exploited via malicious files or web pages.
Who is affected by ZDI-25-1194?
Users of affected installations of FontForge are vulnerable to the exploits related to ZDI-25-1194.
What is required to exploit ZDI-25-1194?
Exploitation of ZDI-25-1194 requires user interaction, as the user must visit a malicious page or open a malicious file.