How severe is CVE-2025-10035?

CVE-2025-10035 has a CVSS score of 10/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2025-10035?

Affected package information for CVE-2025-10035 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2025-10035?

No fixed version has been published for CVE-2025-10035 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2025-10035 actively exploited in the wild?

Yes. There are 1 known exploit references for CVE-2025-10035, including . All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2025-10035?

CVE-2025-10035 has an EPSS (Exploit Prediction Scoring System) score of 62.2%, placing it in the 98th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is CVE-2025-10035 in the CISA Known Exploited Vulnerabilities catalog?

Yes. CVE-2025-10035 (Fortra GoAnywhere MFT Deserialization of Untrusted Data Vulnerability) was added to CISA's Known Exploited Vulnerabilities (KEV) catalog on 2025-09-29. CISA required all US federal civilian agencies to remediate this vulnerability by 2025-10-20. The required action was: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This CVE has been used in known ransomware campaigns. Being listed in the KEV catalog is the strongest possible confirmation of active exploitation — treat this as a critical priority.

What type of vulnerability is CVE-2025-10035?

CVE-2025-10035 is classified as CWE-77 (CWE-77), Deserialization of Untrusted Data (CWE-502). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Which products and versions are affected by CVE-2025-10035?

CVE-2025-10035 affects fortra goanywhere managed file transfer. Check the affected-products list on this page against your deployed version to confirm exposure.

Is there exploit tooling available for CVE-2025-10035?

A Nuclei detection template exists for CVE-2025-10035, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2025-10035 published, and has it been updated?

CVE-2025-10035 was published on September 18, 2025 and was last updated on October 24, 2025. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CISA KEV·Added 2025-09-29 — agencies required to remediate by 2025-10-20 · Ransomware

CVE-2025-10035

CRITICAL

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…

Published

Sep 18, 2025

Updated

Oct 24, 2025

Affected

0 pkgs

Patched

None yet

Exploits

1 known

EPSS Exploitation Probability

via FIRST.org ↗

62.2%probability of exploitation in next 30 days

High Risk98th percentile+2.90%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

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.

Affected Products

1 product · 2 configurations

Application

goanywhere managed file transferfortra

≥ 7.7.0 && < 7.8.4

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

rxerium/CVE-2025-10035

Detection for CVE-2025-10035

⭐ 19🍴 3Oct 2025

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2025-10035 in your stack?

O3 detects CVE-2025-10035 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

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