{"id":"CVE-2024-55956","aliases":["EUVD-2024-52864","GHSA-v87c-pw6c-99w6"],"status":"published","title":"In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an...","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.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.93968,"percentile":0.99848,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-276","CWE-77"],"published":"2024-12-13T00:00:00Z","modified":"2026-08-05T05:16:42Z","kev":{"date_added":"2024-12-17","due_date":"2025-01-07","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"exploitation":[{"source":"euvd","since":"2024-12-17"},{"source":"kev","since":"2024-12-17"}],"exploits":[{"source":"metasploit","id":"exploit/multi/http/cleo_rce_cve_2024_55956","title":"Cleo LexiCom, VLTrader, and Harmony Unauthenticated Remote Code Execution","type":"exploit","platform":"Java,Linux,Unix,Windows","date":"2024-12-09","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/multi/http/cleo_rce_cve_2024_55956"},{"source":"nuclei","id":"CVE-2024-55956","title":"Cleo Harmony \u003c 5.8.0.24 - File Upload Vulnerability","type":"detection template","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-55956.yaml"}],"products":[{"vendor":"cleo","product":"harmony"},{"vendor":"cleo","product":"lexicom"},{"vendor":"cleo","product":"multiple products"},{"vendor":"cleo","product":"vltrader"}],"references":[{"url":"https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending","tags":["Vendor Advisory"]},{"url":"https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update","tags":["Vendor Advisory"]},{"url":"https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55956"},{"url":"https://github.com/advisories/GHSA-v87c-pw6c-99w6"}],"sources":{"cve":[{"id":"CVE-2024-55956","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.","status":"published","published":"2024-12-13T00:00:00Z","modified":"2026-08-05T03:55:58.257Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:34:22.525279Z"}],"euvd":[{"id":"EUVD-2024-52864","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.","status":"published","published":"2024-12-13T00:00:00Z","modified":"2026-08-05T03:55:58Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"exploited_since":"2024-12-17","updated_at":"2026-11-02T18:02:22.516769Z"}],"ghsa":[{"id":"GHSA-v87c-pw6c-99w6","title":"In Cleo Harmony before 5.8.0.24, VLTrader before 5.8.0.24, and LexiCom before 5.8.0.24, an...","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.","status":"published","published":"2024-12-13T21:30:36Z","modified":"2025-10-22T00:33:12Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-77","CWE-276"],"updated_at":"2026-11-02T15:04:07.67458Z"}],"kev":[{"id":"CVE-2024-55956","title":"Cleo Multiple Products Unauthenticated File Upload Vulnerability","description":"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.","cwes":["CWE-276"],"kev":{"date_added":"2024-12-17","due_date":"2025-01-07","required_action":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","known_ransomware_use":"Known"},"updated_at":"2026-11-02T17:00:16.234141Z"}],"nvd":[{"id":"CVE-2024-55956","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.","status":"published","published":"2024-12-13T21:15:13.767Z","modified":"2026-08-05T05:16:42.863Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:10:40.137849Z"}]}}