TI-2025-13955 Aliases CVE-2025-15280 GHSA-9hg6-8r8x-q6q6

Use after free in FontForge

MEDIUM 41CWE-416Published 2025-12-31 · Updated 2025-12-31

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

FontForge SFD File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of FontForge. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of SFD files. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-28525.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.0061 49th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
FontForge	FontForge	aca4f52	—	No fix listed	CNA

FontForge VendorFontForge Affected aca4f52 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:fontforge:fontforge:2025-11-17:::::::*	2025-11-17	Vulnerable	FontForge

cpe:2.3:a:fontforge:fontforge:2025-11-17:*:*:*:*:*:*:* Versions 2025-11-17 Vulnerable ·FontForge

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 10	Affected	No fix yet
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix yet
Red Hat Enterprise Linux 8	Affected	No fix yet
Red Hat Enterprise Linux 9	Affected	No fix yet

Timeline

2026-10-02 Threatist record created from CVE-2025-15280
2026-10-03 Alias added: GHSA-9hg6-8r8x-q6q6

References

Advisory 1

ZDI-25-1188

TI-2025-32277 FontForge v20230101 was discovered to contain a memory leak via the utf7toutf8_copy function at /fontforge/sfd.c. CVSS 3.1MEDIUM 6.5
TI-2025-32275 FontForge v20230101 was discovered to contain a memory leak via the component DlgCreate8. CVSS 3.1MEDIUM 6.5
TI-2019-11856 FontForge 20190813 through 20190820 has a buffer overflow in PrefsUI_LoadPrefs in prefs.c. CVSS 3.0CRITICAL 9.8
TI-2020-04474 FontForge 20190801 has a heap-based buffer overflow in the Type2NotDefSplines() function in splinesave.c. CVSS 3.1HIGH 8.8
TI-2020-04441 FontForge 20190801 has a use-after-free in SFD_GetFontMetaData in sfd.c. CVSS 3.1HIGH 8.8
TI-2017-12798 uiutil.c in FontForge through 20170731 does not validate strings before launching the… CVSS 3.0HIGH 8.8

See all 30 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences