ZDI-CAN-28564: ZDI-25-1195: (0Day) FontForge SFD File Parsing Use-After-Free 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 validating the existence of an object prior to performing operations on the object. 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-2025-15269.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-28564?
The severity of ZDI-CAN-28564 is high due to the potential for remote code execution.
How do I fix ZDI-CAN-28564?
To fix ZDI-CAN-28564, update FontForge to the latest version that includes the security patch.
Who is affected by ZDI-CAN-28564?
Users of FontForge versions that have not been patched are affected by ZDI-CAN-28564.
What is the impact of ZDI-CAN-28564?
The impact of ZDI-CAN-28564 includes the risk of arbitrary code execution on the affected system.
Does ZDI-CAN-28564 require user interaction to exploit?
Yes, ZDI-CAN-28564 requires user interaction, such as visiting a malicious page or opening a malicious file.