# Fortra GoAnywhere MFT zero-day: Cl0p claims 130 victims · pwn.watch

> A pre-auth deserialization/command injection in the GoAnywhere MFT admin console's License Response Servlet was exploited as a zero-day. The Cl0p gang said it stole data from more than 130 organisations, a rehearsal for the later MOVEit campaign.

Page: https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669 · generated 2026-10-22T23:52:53.443Z

## Status
- Severity: high · status: closed · patch: patched
- Product: Fortra GoAnywhere MFT
- Started: 2023-02-01 · closed: 2023-02-10
- CVEs: CVE-2023-0669
- Affected: Before 7.1.2 (NVD)
- Fixed in: 7.1.2

## Follow this incident
- RSS (one item per update): https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669/feed.xml
- JSON Feed: https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669/feed.json
- Full data (timeline, sources, posts, agentBrief): https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669.json
- This file: https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669/llms.txt

## Updates (newest first)
- 2023-02-10: CISA adds CVE-2023-0669 to KEV; Cl0p claims it breached over 130 organisations (https://www.bleepingcomputer.com/news/security/clop-ransomware-claims-it-breached-130-orgs-using-goanywhere-zero-day/)
- 2023-02-07: Emergency patch: GoAnywhere MFT 7.1.2 (https://www.bleepingcomputer.com/news/security/actively-exploited-goanywhere-mft-zero-day-gets-emergency-patch/)
- 2023-02-01: Fortra privately warns customers of an actively exploited zero-day in the GoAnywhere admin console (https://www.bleepingcomputer.com/news/security/actively-exploited-goanywhere-mft-zero-day-gets-emergency-patch/)

## Fix brief
# Security brief: Fortra GoAnywhere MFT zero-day: Cl0p claims 130 victims

Source: https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669 · status: closed (closed Feb 10, 2023) · severity: high · updated Feb 10, 2023

## Patch status
**PATCHED: fixed releases exist. Upgrade to a fixed version.**

## What it is
A pre-auth deserialization/command injection in the GoAnywhere MFT admin console's License Response Servlet was exploited as a zero-day. The Cl0p gang said it stole data from more than 130 organisations, a rehearsal for the later MOVEit campaign.

Severity detail: CVSS 7.2 (NVD), zero-day, actively exploited (CISA KEV), known ransomware use

- Product: Fortra GoAnywhere MFT
- CVE / advisory ids: CVE-2023-0669

## Affected versions
- Before 7.1.2 (NVD)

## Check whether you're affected
No generic command applies (the product is a hosted service, appliance or desktop app). Check the installed version in its admin UI / About screen and compare with the versions above.

## Fix
Upgrade to one of these fixed versions (or later on the same branch):
- 7.1.2

After upgrading, re-run the checks above and redeploy/restart the affected services.

## Latest updates
- Feb 10, 2023: CISA adds CVE-2023-0669 to KEV; Cl0p claims it breached over 130 organisations
- Feb 7, 2023: Emergency patch: GoAnywhere MFT 7.1.2
- Feb 1, 2023: Fortra privately warns customers of an actively exploited zero-day in the GoAnywhere admin console

## Advisories
- [Summary of the Investigation Related to CVE-2023-0669](https://www.fortra.com/blog/summary-investigation-related-cve-2023-0669) (Fortra)
- [NVD: CVE-2023-0669](https://nvd.nist.gov/vuln/detail/CVE-2023-0669) (NVD)
- [CISA Known Exploited Vulnerabilities Catalog](https://www.cisa.gov/known-exploited-vulnerabilities-catalog) (CISA)

## Write-ups & news
- [Actively exploited GoAnywhere MFT zero-day gets emergency patch](https://www.bleepingcomputer.com/news/security/actively-exploited-goanywhere-mft-zero-day-gets-emergency-patch/)
- [Clop ransomware claims it breached 130 orgs using GoAnywhere zero-day](https://www.bleepingcomputer.com/news/security/clop-ransomware-claims-it-breached-130-orgs-using-goanywhere-zero-day/)

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Machine-readable: https://pwn.watch/i/goanywhere-mft-cl0p-cve-2023-0669.json · all incidents: https://pwn.watch/incidents.json. Verify against the vendor advisory before changing production systems.