Vulnerability · Published Oct 23, 2025 · Assigned by mitre
CVE-2025-50951
Medium 6.5
In plain English
A medium-severity memory leak in the fontforge package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.3%top 82.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | fontforge | no fix listed | DEBIAN-CVE-2025-50951 |
| Debian:13 | fontforge | no fix listed | DEBIAN-CVE-2025-50951 |
| Debian:14 | fontforge | no fix listed | DEBIAN-CVE-2025-50951 |
| Ubuntu:22.04:LTS | fontforge | no fix listed | UBUNTU-CVE-2025-50951 |
| Ubuntu:24.04:LTS | fontforge | no fix listed | UBUNTU-CVE-2025-50951 |
| Ubuntu:25.10 | fontforge | no fix listed | UBUNTU-CVE-2025-50951 |
| Ubuntu:26.04:LTS | fontforge | no fix listed | UBUNTU-CVE-2025-50951 |
| Ubuntu:26.10 | fontforge | no fix listed | UBUNTU-CVE-2025-50951 |
Affected products (as reported)
Weakness: CWE-401 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H