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Vulnerability record · CVE-2025-50951 · published 23 October 2025

CVE-2025-50951: Fontforge memory leak vulnerability

Fontforge · Fontforge

FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.

6.5 CVSS 3.1 Medium EPSS 0.26% · top 84.1% CWE-401 · Memory leak
6.5CVSS 3.1 base score
0.26%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/fontforge/fontforge/pull/5495 Patch

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-15785Fontforge memory buffer overflow vulnerabilityFontForge 20190813 through 20190820 has a buffer overflow in PrefsUI_LoadPrefs in prefs.c.EPSS 2.7%8.8CVE-2025-15280Fontforge use after free vulnerabilityFontForge SFD File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code o…EPSS 0.61%8.8CVE-2025-15271Fontforge vulnerabilityFontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows remote attackers to exec…EPSS 0.61%8.8CVE-2025-15272Fontforge heap-based buffer overflow vulnerabilityFontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbi…EPSS 0.61%8.8CVE-2025-15273Fontforge stack-based buffer overflow vulnerabilityFontForge PFB File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arb…EPSS 0.61%8.8CVE-2025-15274Fontforge heap-based buffer overflow vulnerabilityFontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbi…EPSS 0.61%8.8CVE-2025-15275Fontforge heap-based buffer overflow vulnerabilityFontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbi…EPSS 0.61%8.8CVE-2025-15269Fontforge use after free vulnerabilityFontForge SFD File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code o…EPSS 0.53%

Source: NIST National Vulnerability Database (record CVE-2025-50951), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.