CVE-2025-15278: (0Day) FontForge GUtils XBM File Parsing Integer Overflow Remote Code Execution Vulnerability

Published Dec 31, 2025
·
Updated

FontForge GUtils XBM File Parsing Integer 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 pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.

Affected Software

3 affected components
FontForge FontForge
FontForge FontForge
FontForge FontForge=20251009

Event History

Dec 31, 2025
CVE Published
via MITRE·06:59 AM
Data Sourced
via MITRE·06:59 AM
DescriptionSeverityWeakness
Advisory Published
via ZDI·07:06 AM
Data Sourced
via ZDI·07:06 AM
DescriptionSeverityAffected Software
Data Sourced
via NVD·07:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-15278?

CVE-2025-15278 has a high severity rating due to its potential for remote code execution.

2

How do I fix CVE-2025-15278?

To fix CVE-2025-15278, update FontForge to the latest version that includes security patches.

3

What software is affected by CVE-2025-15278?

CVE-2025-15278 affects installations of FontForge due to its vulnerable processing of XBM files.

4

Can CVE-2025-15278 be exploited without user interaction?

No, CVE-2025-15278 requires user interaction as the target must open a crafted XBM file.

5

What type of vulnerability is CVE-2025-15278?

CVE-2025-15278 is classified as an integer overflow vulnerability leading to remote code execution.

Contact

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