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CVE-2025-15277

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CVE-2025-15277

Published: Dec 31, 2025

Modified: Dec 31, 2025

PUBLISHED

CVSS v3.0

7.8

HIGH

Description

FontForge GUtils SGI 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 scanlines within SGI 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 process. Was ZDI-CAN-27920.

VendorProductVersions

FontForge

FontForge

affected
88de9b7dc76fbdef9069b7664ecc280f1c15ba2f

Weaknesses (CWE)

CWE-122

CVSS v3.0 Details

CVSS v3.0 Vector

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

ZDI-25-1186
x_research-advisory

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