CVEvulnerability

CVE-2024-55956

9.8 CRITICAL Known exploited Published 2024-12-13 Modified 2026-08-05 Official page ↗

CISA Known Exploited Vulnerability

Cleo Multiple Products Unauthenticated File Upload Vulnerability — Cleo Multiple Products

Cleo Harmony, VLTrader, and LexiCom, which are managed file transfer products, contain an unrestricted file upload vulnerability that could allow an unauthenticated user to import and execute arbitrary bash or PowerShell commands on the host system by leveraging the default settings of the Autorun directory.

Added to KEV: 2024-12-17
Remediation due: 2025-01-07
Ransomware use: Known
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Notes: https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update-CVE-2024-55956 ; https://nvd.nist.gov/vuln/detail/CVE-2024-55956

Status: Analyzed
Published: 2024-12-13
Last modified: 2026-08-05
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses: CWE-77

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.

Affected configurations

• cleo harmony (< 5.8.0.24) • cleo lexicom (< 5.8.0.24) • cleo vltrader (< 5.8.0.24)

Weakness · CWE (1)

CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References