ZDI-CAN-28547: ZDI-25-1192: (0Day) FontForge SFD File Parsing Heap-based Buffer Overflow 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 the length of user-supplied data prior to copying it to a heap-based buffer. 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-2025-15272.
— ZDI
Affected Software
Event History
Frequently Asked Questions
What is the severity of ZDI-CAN-28547?
ZDI-CAN-28547 has a high severity rating due to its potential for remote code execution.
How do I fix ZDI-CAN-28547?
To fix ZDI-CAN-28547, update FontForge to the latest version that addresses this vulnerability.
What impact does ZDI-CAN-28547 have on users?
ZDI-CAN-28547 can allow remote attackers to execute arbitrary code if the user opens a malicious file or visits a malicious webpage.
Is user interaction required to exploit ZDI-CAN-28547?
Yes, user interaction is required as the target must visit a malicious page or open a malicious file to exploit ZDI-CAN-28547.
Which versions of FontForge are affected by ZDI-CAN-28547?
ZDI-CAN-28547 affects all installations of FontForge prior to the security update that addresses this vulnerability.