CVE-2025-50951 json
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
published 2025-10-23 12 mo ago modified 2026-11-05 3 d ago also EUVD-2025-35699
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
Patch / fix
- github.com/fontforge/fontforge#5495 pull request
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2025-50951 updated cvss 5.3
fontforge: Fontforge memory leak
-
Red Hat Enterprise Linux 8 fontforge Red Hat Enterprise Linux 9 fontforge Red Hat Enterprise Linux 10 fontforgeaffected: workaround, no fix available “Fix deferred”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 12 mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
Sources
- CVE List CVE-2025-50951
- NVD CVE-2025-50951
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.