Background exploitation KEV catalog Ransomware
CVE-2023-0669

Fortra GoAnywhere MFT Remote Code Execution Vulnerability

Fortra (formerly, HelpSystems) GoAnywhere MFT suffers from a pre-authentication command injection vulnerability in the License Response Servlet due to deserializing an arbitrary attacker-controlled object. This issue was patched in version…

CheckOps priority index
8.3/10 Patch within 24 h
Severity7.2
Probability10.0
Exploitation4/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 100.00% higher than 100.00% of CVEs
CVSS 3.1 7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:
Exploited for 1,362 days 10 Feb 2023
CISA due date 03 Mar 2023 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep05 Oct15 Oct24 Oct02 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 4 / 5

  • KEV catalog (CISA)10 Feb 2023
  • Exploited in EUVD (ENISA)10 Feb 2023
  • Used by ransomwareyes
  • EPSS above 10 %100.00%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Fortra (formerly, HelpSystems) GoAnywhere MFT suffers from a pre-authentication command injection vulnerability in the License Response Servlet due to deserializing an arbitrary attacker-controlled object. This issue was patched in version 7.1.2.

Affected products

GoAnywhere MFT
Affected versions
  • 0 ≤7.1.1
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 100.00%

References

Other exploited vulnerabilities from the same vendor

  • CVE-2025-10035Fortra GoAnywhere MFT Deserialization of Untrusted Data Vulnerability
    10.0 · Background exploitation
  • CVE-2022-42948Fortra Cobalt Strike User Interface Remote Code Execution Vulnerability
    5.8 · Background exploitation
  • CVE-2022-39197Fortra Cobalt Strike Teamserver Cross-Site Scripting (XSS) Vulnerability
    6.2 · Background exploitation

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities