CVE-2025-15274CWE-122

FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

High · published December 31, 2025

CVSS v3.0
8.8
EPSS
1%
Percentile
48.5
In the wild
Unconfirmed
What it is

⚡ A single malicious SFD file could let an attacker execute arbitrary code with just a click! Think of it like a restaurant that lets you bring in your own dish — if they don't check your ingredients, someone could sneak in a poison that's served right at the table! 🍽️ If exploited, a remote attacker could gain control over your system, running code as if they were you. This could lead to data breaches, unauthorized access, or even total system compromise. Scary, right? 🔥

Put simply

Think of it like a restaurant that lets you bring in your own dish — if they don't check your ingredients, someone could sneak in a poison that's served right at the table! 🍽️ The vulnerability arises from improper validation of user-supplied data when parsing SFD files, leading to a heap-based buffer overflow. This oversight allows attackers to manipulate memory and execute their own code remotely.

What to do

If exploited, a remote attacker could gain control over your system, running code as if they were you. This could lead to data breaches, unauthorized access, or even total system compromise. Scary, right? 🔥 To protect yourself, immediately update FontForge to the latest version that addresses this vulnerability. Also, avoid opening suspicious SFD files or visiting untrusted webpages until you've patched the issue. 🛡️ You've got this! Stay vigilant and secure your setup with these steps. 💪✨

The record
Technical detail
CVSS v3.0
8.8 · HIGH
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00609 · 48.5th percentile
Weakness
CWE-122 · Heap-based Buffer Overflow
Published
2025-12-31T06:59Z
EPSS history
Timeline
  • 31 DEC 06:59Z
    FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
    cvelistv5