CVE-2023-0669Known exploitationPublic exploitNetwork attack vector

Pre-authentication code execution via unsafe license deserialization

Published Feb 6, 2023 · Updated Aug 6, 2026

Command injection in Fortra GoAnywhere MFT 7.1.1 and earlier allows remote attackers to execute arbitrary code through the admin port. LicenseResponseServlet passes the attacker-controlled bundle parameter to LicenseAPI.getResponse, which decrypts and deserializes it without authentication. Exposure requires network access to the administration port, and successful execution can create accounts, install tools, and download stored files.

CVSS severity7.2
High
EPSS probability100.00%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Fortra GoAnywhere MFT 7.1.1 and earlier allows remote attackers to execute arbitrary code through the admin port. LicenseResponseServlet passes the attacker-controlled bundle parameter to LicenseAPI.getResponse, which decrypts and deserializes it without authentication. Exposure requires network access to the administration port, and successful execution can create accounts, install tools, and download stored files.

The record

CVE
CVE-2023-0669
Published
Feb 6, 2023
Updated
Aug 6, 2026
Vendor
Fortra
Product
GoAnywhere MFT
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 18, 2023Exploitation reportedFortra investigation of unauthorized GoAnywhere access
  2. Feb 6, 2023CVE publishedPublication date reported by the CVE source.
  3. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=7.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fortra · GoAnywhere MFTversion=0 <=7.1.1

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsShadowserver observations through Sep 16, 2026. Gaps indicate unavailable data.
Sep 10, 2026Sep 16, 2026
View daily counts
Reporting dayUnique IPs
Sep 10, 202613
Sep 11, 20261
Sep 12, 2026Unavailable
Sep 13, 2026Unavailable
Sep 14, 20266
Sep 15, 20269
Sep 16, 2026Unavailable
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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