Heap-Based Buffer Overflow in FontForge Allows Remote Code Execution
CVE-2025-15275

8.8HIGH

Key Information:

Vendor

Fontforge

Status
Fontforge
Vendor
CVE Published:
31 December 2025

What is CVE-2025-15275?

A vulnerability in FontForge's SFD file parsing process leads to a heap-based buffer overflow. Attackers can exploit this flaw to execute arbitrary code by tricking users into visiting a malicious webpage or opening a compromised file that leverages the improper validation of user-supplied data lengths. This allows remote execution of code under the current user's privileges, exposing systems to potential data breaches and unauthorized access.

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Affected Version(s)

FontForge aca4f524c6cb14cdc7bc4cd493492a33f5154797

References

https://www.zerodayinitiative.com/advisories/ZDI-25-1189/
x_research-advisory

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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