CVE-2025-50951
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at ...
CVE-2025-50951 is a medium vulnerability (CVSS 6.5) in Fontforge, published October 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
CVE-2025-50951- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-401
- Updated
- 2026-11-02
EUVDEUVD-2025-35699
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
EUVD-2025-35699- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-x45p-m5jm-48hc
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at ...
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
GHSA-x45p-m5jm-48hc- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-401
- Updated
- 2026-11-02
NVD
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
CVE-2025-50951- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-401
- Updated
- 2026-11-02
OSV
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
CVE-2025-50951- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2025-50951
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
DEBIAN-CVE-2025-50951- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2025-50951
FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c.
- Record
UBUNTU-CVE-2025-50951- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
fontforgeDebian:12 |
All versions, plus listed versions 1:20230101~dfsg-11:20230101~dfsg-1.11:20230101~dfsg-1.1~deb12u11:20230101~dfsg-21:20230101~dfsg-3 Show 8 moreShow less1:20230101~dfsg-41:20230101~dfsg-51:20230101~dfsg-61:20230101~dfsg-71:20230101~dfsg-81:20230101~dfsg-91:20251009+git20260808~dfsg-11:20251009+git20260808~dfsg-2 |
None known |
fontforgeDebian:13 |
All versions, plus listed versions 1:20230101~dfsg-41:20230101~dfsg-51:20230101~dfsg-61:20230101~dfsg-71:20230101~dfsg-81:20230101~dfsg-91:20251009+git20260808~dfsg-11:20251009+git20260808~dfsg-2 |
None known |
fontforgeDebian:14 |
All versions, plus listed versions 1:20230101~dfsg-41:20230101~dfsg-51:20230101~dfsg-61:20230101~dfsg-71:20230101~dfsg-81:20230101~dfsg-91:20251009+git20260808~dfsg-11:20251009+git20260808~dfsg-2 |
None known |
fontforgeUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 20120731.b-520120731.b-5ubuntu120120731.b-7.120120731.b-7.1ubuntu0.120120731.b-7.1ubuntu0.1+esm1 |
None known |
fontforgeUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 1:20161005~dfsg-4+deb9u1ubuntu11:20170731~dfsg-11:20170731~dfsg-1ubuntu0.1~esm1 |
None known |
fontforgeUbuntu:20.04:LTS |
All versions, plus listed versions 1:20170731~dfsg-1build11:20170731~dfsg-21:20190801~dfsg-21:20190801~dfsg-2ubuntu11:20190801~dfsg-41:20190801~dfsg-4ubuntu0.1 |
None known |
fontforgeUbuntu:22.04:LTS |
All versions, plus listed versions 1:20201107~dfsg-41:20201107~dfsg-4build11:20201107~dfsg-4+deb11u1build0.22.04.1 |
None known |
fontforgeUbuntu:24.04:LTS |
All versions, plus listed versions 1:20230101~dfsg-1build11:20230101~dfsg-1build21:20230101~dfsg-1.11:20230101~dfsg-1.1build1 |
None known |
fontforgeUbuntu:25.10 |
All versions, plus listed versions 1:20230101~dfsg-4build11:20230101~dfsg-4build21:20230101~dfsg-71:20230101~dfsg-8 |
None known |
fontforgeUbuntu:26.10 |
All versions, plus listed versions 1:20230101~dfsg-8build11:20230101~dfsg-91:20251009+git20260808~dfsg-2 |
None known |
fontforgeUbuntu:26.04:LTS |
All versions, plus listed versions 1:20230101~dfsg-81:20230101~dfsg-8build1 |
None known |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-02 | created | CVE List, EUVD, GitHub Advisories, NVD, OSV |