CVE-2025-10035

Fortra GoAnywhere MFT: Deserialization of Untrusted Data

As of , CVE-2025-10035 in Fortra GoAnywhere MFT is on CISA's list of exploited vulnerabilities: CISA listed it on . Our patch-first group: Patch this week.

Exploited
Yes: CISA listed it on 29 September 2025
US federal deadline
20 October 202521 days after CISA listed it. US federal civilian agencies must fix it by then.
Used in ransomware campaigns
KnownCISA changed it from Unknown to Known on 6 October 2025.
EPSS score
0.99Higher than 99% of the CVEs EPSS scores. EPSS estimates the chance of exploitation activity in the next 30 days.
Public exploit
None foundNeither Metasploit nor Exploit-DB lists one.
Fix
Vendor advice: www.fortra.comLinks below, from CISA's entry.

What CISA says to do

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA's required action

What the flaw is

Fortra GoAnywhere MFT contains a deserialization of untrusted data vulnerability allows an actor with a validly forged license response signature to deserialize an arbitrary actor-controlled object, possibly leading to command injection.

CISA's description

A deserialization vulnerability in the License Servlet of Fortra's GoAnywhere MFT allows an actor with a validly forged license response signature to deserialize an arbitrary actor-controlled object, possibly leading to command injection.

The CVE record's description, from Fortra

CVE published
18 September 2025
Assigned by
Fortra
CVSS
10.0 Critical (CVSS 3.1, from the CNA)
CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-502
Deserialization of Untrusted Data
CISA SSVC, exploitation
active
CISA SSVC, automatable
yes
CISA SSVC, technical impact
total

Timeline

  1. The CVE record was published.
  2. CISA added it to its list of exploited vulnerabilities.
  3. CISA changed its entry. Ransomware use: Unknown to Known.
  4. The US federal deadline to fix it.

GoAnywhere MFT: other exploited entries

VulnerabilityProductOur groupListedDeadlineEPSS
CVE-2023-0669Remote Code ExecutionFortra GoAnywhere MFTPatch this weekRansomware use; Metasploit module; EPSS 0.990.99

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