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CVE Record

CVE-2025-10035: Deserialization Vulnerability in GoAnywhere MFT's License Servlet

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.

CriticalCVSS 10Known exploitedUpdated
Glexia's TakeSource changedcritical

Security readout for executives and security teams

Plain-English summary

GoAnywhere MFT contains a critical flaw that could let an unauthenticated attacker compromise the system after forging a valid license-response signature. Successful exploitation may allow command execution, threatening transferred files, credentials, connected systems, and service availability.

Executive priority

Treat as an immediate remediation and incident-hunting priority. Active exploitation, unauthenticated network reachability, potential command execution, and a maximum CVSS score create material risks to sensitive file transfers, credentials, operations, and connected environments.

Technical view

The License Servlet can deserialize an attacker-controlled object when supplied with a validly forged license-response signature. The issue combines unsafe deserialization with possible command injection. Its CVSS 3.1 score is 10.0, with network access, low complexity, no privileges, and no user interaction specified.

Likely exposure

GoAnywhere MFT deployments with a reachable License Servlet may be exposed, especially when accessible from untrusted networks. The bundle lists an affected version value of “0,” which is not an actionable version range; administrators must use Fortra’s advisory to determine affected builds.

Exploitation context

CISA lists CVE-2025-10035 in its Known Exploited Vulnerabilities catalog, supporting active exploitation in the wild. The supplied evidence does not describe attack volume, targeted organizations, observed indicators, or the method used to forge license-response signatures.

Researcher notes

The exploitation prerequisite is a validly forged license-response signature, followed by attacker-controlled deserialization. The provided bundle does not establish the affected version range, patched versions, indicators of compromise, or exploitation mechanics. Avoid treating the listed version value “0” as meaningful product-version guidance.

Mitigation direction

  • Review Fortra advisory FI-2025-012 and apply its prescribed remediation immediately.
  • Restrict untrusted network access to GoAnywhere MFT while remediation is pending.
  • Isolate suspected systems and preserve relevant application, proxy, authentication, and endpoint logs.
  • Review connected credentials and rotate them if compromise is suspected.

Validation and detection

  • Inventory GoAnywhere MFT deployments and compare exact builds against Fortra’s advisory.
  • Determine whether the License Servlet is reachable from untrusted networks.
  • Review telemetry for unusual servlet requests, unexpected child processes, or command execution.
  • Confirm the vendor-prescribed remediation is installed on every deployment.
  • Retest network exposure after remediation without attempting exploitation.
Prepared
Confidence
high
Sources
4

The source record changed after analysis: Material source record changed after analysis.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-502: Code execution behavior lookup

Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-77: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2025-10035 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Critical
CVSS
10 (3.1)
Known Exploited
Yes
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
1ADP providers
3Source links

CISA KEV status

Status
Known exploited
Source
CISA-ADP
Date added
KEV reference

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: activeAutomatable: yesTechnical Impact: total

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
10CVSS 3.1CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96Fortra

Vulnerability scoring details

Base CVSS 3.1 score

10Critical
CVSS 3.1 vector shape for CVE-2025-10035Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. Added to KEVCISA-ADP

    CISA Known Exploited Vulnerabilities metadata lists this CVE as known exploited.

  4. ADP timelineCISA-ADP

    CVE-2025-10035 added to CISA KEV

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvcother:kev
  • 2025-09-29T00:00:00.000Z: CVE-2025-10035 added to CISA KEV
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FortraGoAnywhere MFT0affected
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-502 · source CWE mapping

Deserialization of Untrusted Data

Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

CWE-77 · source CWE mapping

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.