CVE-2025-10035KEV · OVERDUECWE-502CWE-77command-injectioninsecure-deserialization

Fortra GoAnywhere MFT Deserialization of Untrusted Data Vulnerability

Critical · published September 19, 2025

Patch now

Confirmed exploited, and the score agrees

CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 100.0th percentile for exploit probability.

368
days past CISA
deadline
CVSS v3.1
10.0
EPSS
100%
Percentile
100.0
In the wild
Confirmed
What it is

🚨 Imagine a crafty intruder using a forged license to waltz right through your security gates! This deserialization vulnerability in Fortra’s GoAnywhere MFT is your wake-up call — it can lead to command injection with ease! 🔥 Think of this flaw like a hotel that accepts any reservation, even those forged with fake names. Once inside, the intruder can not only check into any room but also wreak havoc in the entire building! An attacker could gain unauthorized access to your system, execute commands at will, and compromise sensitive data — a virtual open house for cybercriminals! This vulnerability is absolutely devastating and must be taken seriously!

Put simply

Think of this flaw like a hotel that accepts any reservation, even those forged with fake names. Once inside, the intruder can not only check into any room but also wreak havoc in the entire building! This deserialization vulnerability allows an attacker with a forged license response signature to introduce arbitrary objects into the system, potentially enabling command injection and taking control of the application.

What to do

An attacker could gain unauthorized access to your system, execute commands at will, and compromise sensitive data — a virtual open house for cybercriminals! This vulnerability is absolutely devastating and must be taken seriously! Patch the system immediately to the latest version released by Fortra. Review and validate all incoming license requests to ensure they originate from a trusted source. Consider implementing additional security measures, such as input validation and monitoring for unusual activity. 🛡️ You've got this! By following these steps, you'll fortify your defenses and keep your system safe! 💪✨

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.99799 · 100.0th percentile
Weaknesses
CWE-502 · Deserialization of Untrusted Data; CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2025-09-19T02:15Z
KEV added
2025-09-29 · due 2025-10-20
Affected products (2)
ProductVersionsFixed in
fortra/goanywhere_managed_file_transfer< 7.6.37.6.3
fortra/goanywhere_managed_file_transfer≥ 7.7.0, < 7.8.47.8.4
References (2)
EPSS history
Timeline
  • 29 SEP 00:00Z
    Added to CISA KEV — remediate by Oct 20
    kev
  • 18 SEP 22:01Z
    Deserialization Vulnerability in GoAnywhere MFT's License Servlet
    cvelistv5