Integer Overflow Vulnerability in FontForge GUtils XBM File Parsing

CVE-2025-15278

What is CVE-2025-15278?

The FontForge GUtils product contains a vulnerability within its processing of XBM files that could allow remote attackers to execute arbitrary code. This vulnerability arises from inadequate validation of user-input data during pixel parsing, leading to an integer overflow prior to buffer allocation. For exploitation, attackers need to lure users into visiting specially crafted web pages or opening harmful files, potentially executing code under the privileges of the user running FontForge. This issue highlights the importance of robust input validation mechanisms to safeguard against similar vulnerabilities.

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