Is CVE-2024-55956 actively exploited?

CVE-2024-55956 has no public evidence of in-the-wild exploitation as of 2025-11-04.

What is the CVSS score for CVE-2024-55956?

CVE-2024-55956 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2024-55956?

Patch guidance is available from cleo security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2024-55956.

Fix CVE-2024-55956 - CRITICAL cleo harmony

Q: Which products are affected by CVE-2024-55956?

3 products: cleo harmony, cleo lexicom, cleo vltrader.

Description

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-77 · Command Injection CWE-77 · Command Injection

Metadata

Primary Vendor: CLEO
Published: 12/13/2024
Last Modified: 11/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2024-55956

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary