CVE-2024-55956

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

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

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
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
CPE cpe:2.3:a:cleo:harmony:*:*:*:*:*:*:*:*
cpe:2.3:a:cleo:vltrader:*:*:*:*:*:*:*:*
cpe:2.3:a:cleo:lexicom:*:*:*:*:*:*:*:*
First Time Cleo
Cleo vltrader
Cleo harmony
Cleo lexicom
CWE CWE-77

16 Dec 2024, 18:15

Type Values Removed Values Added
Summary
  • (es) En Cleo Harmony anterior a 5.8.0.24, VLTrader anterior a 5.8.0.24 y LexiCom anterior a 5.8.0.24, un usuario no autenticado puede importar y ejecutar comandos Bash o PowerShell arbitrarios en el sistema host aprovechando la configuración predeterminada del directorio Autorun.
CWE CWE-276
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8

13 Dec 2024, 22:15

Type Values Removed Values Added
References
  • () https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update -
  • () https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild -

13 Dec 2024, 21:15

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

  • harmony
  • vltrader
  • lexicom
CWE
CWE-77

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