CVE-2024-55956

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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending	Vendor Advisory
https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update	Vendor Advisory
https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild	Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cleo:harmony::::::::
	cpe:2.3:a:cleo:lexicom::::::::
	cpe:2.3:a:cleo:vltrader::::::::

History

21 Oct 2025, 23:16

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956 -

21 Oct 2025, 20:20

Type	Values Removed	Values Added
References	~~{'url': 'https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956', 'source': '134c704f-9b21-4f2e-91b3-4a467353bcc0'}~~

21 Oct 2025, 19:20

Type	Values Removed	Values Added
References		() https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956 -

05 Feb 2025, 19:15

Type	Values Removed	Values Added
CWE	~~CWE-276~~

20 Dec 2024, 15:21

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-12-13 21:15

Updated : 2025-10-21 23:16

NVD link : CVE-2024-55956

Mitre link : CVE-2024-55956

CVE.ORG link : CVE-2024-55956

JSON object : View

Products Affected

cleo

vltrader
harmony
lexicom

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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