Bug 2426422 (CVE-2025-15271)

Summary: CVE-2025-15271 fontforge: FontForge: Remote Code Execution via SFD file parsing vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in FontForge. This vulnerability allows a remote attacker to execute arbitrary code on affected installations. Exploitation requires user interaction, such as opening a malicious SFD (Spline Font Database) file. The issue arises from improper validation of user-supplied data during SFD file parsing, which can lead to a write past the end of an allocated memory array, enabling arbitrary code execution in the context of the current user.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2426581, 2426583    
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Description OSIDB Bzimport 2025-12-31 08:01:13 UTC 
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.