CVE-2025-15271 — HIGH (8.8)

Vulnerability Description

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. Was ZDI-CAN-28562.

CVSS Score

8.8

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Fontforge	Fontforge	2025-11-17

Related Weaknesses (CWE)

CWE-129

References

https://www.zerodayinitiative.com/advisories/ZDI-25-1193/Third Party Advisory

FAQ

What is CVE-2025-15271?

CVE-2025-15271 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 Fon...

How severe is CVE-2025-15271?

CVE-2025-15271 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-15271?

Check the references section above for vendor advisories and patch information. Affected products include: Fontforge Fontforge.