CVE-2024-55956

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-55956

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

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

I

n 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.

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 US Government Resource
Configurations

Configuration 1 (hide)

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

04 Nov 2025, 16:37

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

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
First Time Cleo lexicom
Cleo
Cleo harmony
Cleo vltrader
References () https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending - () https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending - Vendor Advisory
References () https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update - () https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update - Vendor Advisory
References () https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild - () https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild - Exploit, Third Party Advisory
CWE CWE-77
CPE cpe:2.3:a:cleo:lexicom:*:*:*:*:*:*:*:*
cpe:2.3:a:cleo:harmony:*:*:*:*:*:*:*:*
cpe:2.3:a:cleo:vltrader:*:*:*:*:*:*:*:*

16 Dec 2024, 18:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8
CWE CWE-276

13 Dec 2024, 22:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-13 21:15

Updated : 2025-11-04 16:37

NVD link : CVE-2024-55956

Mitre link : CVE-2024-55956

CVE.ORG link : CVE-2024-55956

JSON object : View

Products Affected

cleo

CWE
CWE-77

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