Remote Code Execution Vulnerability in FontForge Due to Parsing Flaw
CVE-2025-15270

8.8HIGH

Key Information:

Vendor

Fontforge

Status
Fontforge
Vendor
CVE Published:
31 December 2025

What is CVE-2025-15270?

A vulnerability in FontForge exists due to improper validation while parsing SFD files, which allows remote attackers to execute arbitrary code. This issue arises when user-supplied data isn't correctly validated, leading to potential memory corruption through writes beyond the allocated array's boundary. Exploiting this flaw requires user interaction, as the target must visit a malicious page or open a compromised file. This compromise can put users at risk, executing code in the context of the current user, highlighting the importance of secure coding practices in file parsing.

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Affected Version(s)

FontForge aca4f524c6cb14cdc7bc4cd493492a33f5154797

References

https://www.zerodayinitiative.com/advisories/ZDI-25-1194/
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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