Stack-based buffer overflow in FontForge - CVE-2025-15273
Published: January 8, 2026
Vulnerability identifier: #VU121107
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-15273
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trick a victim to open a specially crafted PFB file, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
FontForge
Anolis OS
fontforge
fontforge-devel
fontforge-doc
Anolis OS
fontforge
fontforge-devel
fontforge-doc
How to mitigate CVE-2025-15273
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
fontforge - update to 20251009-1
fontforge-devel - update to 20251009-1
fontforge-doc - update to 20251009-1
fontforge-devel - update to 20251009-1
fontforge-doc - update to 20251009-1