Threats / Fortra / CVE-2025-10035
CVE-2025-10035
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Fortra GoAnywhere MFT vulnerability
Fortra GoAnywhere MFT contains a deserialization vulnerability allowing attackers with forged license signatures to inject arbitrary commands through untrusted object deserialization.
Verdict
Today item, not a backlog item.
An attacker who can forge a valid license response signature can deserialize malicious objects in GoAnywhere MFT, achieving command injection. This vulnerability is actively exploited in ransomware campaigns.
CISA KEV Yes · 2025-09-295Ransomware use Flagged5EPSS 0.99614 (verify live)6CVSS 103CISA SSVC Exploitation: active · Automatable: yes · Impact: total4Exploit Public PoC / detection · nuclei template13
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
24 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-09-29), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.99614 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) · Affected: Fortra, GoAnywhere MFT. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-77 Command Injection, CWE-502 Deserialization of Untrusted Data — weakness family: Injection.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 11 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a public proof-of-concept / detection template). Catalog entries: nuclei template. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a fraudulent license response with a valid signature by exploiting the deserialization flaw.
Business
The organization's file transfer system becomes a vector for unauthorized code execution.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I inject arbitrary commands through the deserialized object payload during license validation.
Business
Attackers gain command execution privileges on the MFT server hosting sensitive file transfers.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistence and lateral movement within the network using the compromised MFT instance.
Business
Ransomware operators encrypt critical business data and demand payment, disrupting operations.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05