CVE-2025-50951
CVE-2025-50951 is a medium-severity vulnerability in Fontforge with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 0% (15th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-35699
- Weakness: CWE-401
- Affected product: Fontforge
- Published:
- Last modified:
Description
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
Frequently asked questions
- What is CVE-2025-50951?
- FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- How severe is CVE-2025-50951?
- CVE-2025-50951 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2025-50951 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-50951?
- CVE-2025-50951 affects Fontforge. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-50951?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-50951 have an EU (EUVD) identifier?
- Yes. CVE-2025-50951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-35699.
- When was CVE-2025-50951 published?
- CVE-2025-50951 was published on 2025-10-23 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:fontforge:fontforge:2023-01-01:*:*:*:*:*:*:*
More vulnerabilities in Fontforge
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- CVE-2025-15275 — High (CVSS 8.8): FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows…
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- CVE-2025-15273 — High (CVSS 8.8): FontForge PFB File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows…
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