Read the docs
TI-2025-13953 Aliases CVE-2025-15278GHSA-grcr-j565-jxh5

Integer overflow in FontForge

Priority LOW 36CWE-190Published · Updated

Key facts

Attack vector
Local
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-190 and the CVSS impact.

Summary

FontForge GUtils XBM File Parsing Integer Overflow 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 pixels within XBM files. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27865.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd 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

VendorProductAffected versionsFixed inStatusSource
FontForgeFontForge88de9b7dc76fbdef9069b7664ecc280f1c15ba2f—No fix listedCNA
  • FontForge VendorFontForge Affected 88de9b7dc76fbdef9069b7664ecc280f1c15ba2f Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fontforge:fontforge:20251009:*:*:*:*:*:*:*20251009VulnerableFontForge
  • cpe:2.3:a:fontforge:fontforge:20251009:*:*:*:*:*:*:* Versions 20251009 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 →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-15278
  2. 2026-10-03 Alias added: GHSA-grcr-j565-jxh5

References

Advisory 1

  • 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