CVE-2025-10035 — Fortra Goanywhere Managed File Transfer

As of 2025-10-24, CVE-2025-10035 is a CRITICAL-severity vulnerability in Fortra Goanywhere Managed File Transfer, CVSS v3.1 10, EPSS 55.7% (98.0th percentile). It is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-09-29), with a US federal remediation deadline of 2025-10-20, and CISA links it to known ransomware campaigns. Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2025-10035, most recently “Storm-1175 Medusa Ransomware Zero-Day Exploitation Campaign (CVE-2026-23760, CVE-2025-10035)”.

Last updated: 2025-10-24

What is CVE-2025-10035?

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 record classifies CVE-2025-10035 under weakness classes CWE-77, CWE-502. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 360 days ago.

Severity and exploitation probability

CVSS v3.1 base score

10 — CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS (FIRST)

55.7% probability of exploitation in the next 30 days, higher than 98.0% of all scored CVEs

CISA KEV

Listed since 2025-09-29, federal remediation deadline 2025-10-20 — used in known ransomware campaigns

Threadlinqs priority

10/10 — CISA lists it as used in ransomware, which Threadlinqs scores at the maximum

Published

2025-09-18, last modified 2025-10-24

Is CVE-2025-10035 being exploited?

CISA added CVE-2025-10035 to the Known Exploited Vulnerabilities catalog on 2025-09-29, which means the agency holds evidence of exploitation in the wild; US federal civilian agencies had to remediate it by 2025-10-20 under BOD 22-01. CISA flags the vulnerability as one used in known ransomware campaigns. It currently carries a trending score of 40 in the Threadlinqs vulnerability feed.

Affected products and versions

• Fortra: Goanywhere Managed File Transfer

How to fix CVE-2025-10035

Vendor advisory: https://www.fortra.com/security/advisories/product-security/fi-2025-012. Because CVE-2025-10035 is KEV-listed, US federal civilian agencies were required to apply the vendor fix, or stop using the product, by 2025-10-20. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

Threat activity tracking CVE-2025-10035

1 tracked threat in the Threadlinqs corpus references CVE-2025-10035, either in the campaign’s CVE list or as an indicator on the campaign record.

• Storm-1175 Medusa Ransomware Zero-Day Exploitation Campaign (CVE-2026-23760, CVE-2025-10035) — CRITICAL · 2026-04-06

Sources

Seeded from nvd and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.

• fortra.com
• cisa.gov

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