CISA KEV · Known exploitedCritical

CVE-2024-55956

Cleo Multiple Products

In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.

CVSS
9.8
EPSS
93.8%
99.8% percentile
CISA KEV
Listed
Published
2024.12.14
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability93.8%
Technical severityCVSS 9.8

Vulnerability overview

In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an unauthenticated user can import and execute arbitrary Bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.

Affected product and versions

Product
Cleo Multiple Products
Affected versions
< 5.8.0.24
Fixed versions
5.8.0.24

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2025.01.07
  1. 1
    Identify

    Confirm that Cleo Multiple Products and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-276, CWE-77
KEV added
2024.12.17
Ransomware use
확인됨
CVE-2024-55956 — Cleo Multiple Products | SECUFOCUS NOW