Fortra GoAnywhere MFT Deserialization of Untrusted Data Vulnerability (CVE-2025-10035)
Severity: critical · Patch status: unknown · Since 2025-09-29 · CVE-2025-10035
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 added CVE-2025-10035 to its Known Exploited Vulnerabilities catalog on Sep 29, 2025, which means attackers are exploiting it in the wild. CISA reports known use in ransomware campaigns.
What 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.
- US federal agencies must remediate by Oct 20, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
