{"schema":"threatline.record/2","record":{"id":"CVE-2024-55956","aliases":[],"summary":"Cleo Multiple Products Unauthenticated File Upload Vulnerability","details":"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.","categories":["Unclassified"],"product":"Multiple Products","vendor":"Cleo","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2024-55956","source_modified_at":"2026-08-05T03:55:58.257Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"n/a","vendor":"n/a","versions":[{"version":"n/a","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":9.8,"severity":"Critical","kev":{"listed":true,"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.","ransomware_campaign_use":"Known"},"epss":{"probability":0.93968,"percentile":0.99848,"score_date":"2026-10-23"},"published_at":"2024-12-13T00:00:00.000Z","modified_at":"2026-08-05T03:55:58.257Z","provenance":[{"source":"CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T17:00:09.9001Z"},{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2024-55956","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-08-05T03:55:58.257Z"},{"source":"Metasploit","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/cleo_rce_cve_2024_55956.rb","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2024-12-09"},{"source":"Nuclei","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-55956.yaml","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":null},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2024-55956","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CISA KEV","CVE List","Metasploit","Nuclei","EPSS"],"references":[{"url":"https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update-CVE-2024-55956","source":"CISA KEV"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-55956","source":"CISA KEV"},{"source":"CVE List","url":"https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Advisory-CVE-Pending"},{"source":"CVE List","url":"https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update"},{"source":"CVE List","url":"https://www.huntress.com/blog/threat-advisory-oh-no-cleo-cleo-software-actively-being-exploited-in-the-wild"},{"source":"CVE List","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-55956","tags":["government-resource"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"active","automatable":"no","technical_impact":"total","assessed_at":"2024-12-16T00:00:00+00:00"},"exploits":[{"source":"Metasploit","kind":"Exploit module","name":"Cleo LexiCom, VLTrader, and Harmony Unauthenticated Remote Code Execution","url":"https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/http/cleo_rce_cve_2024_55956.rb","date":"2024-12-09","added":"2026-04-22","check":true},{"source":"Nuclei","kind":"Scanner template","name":"Cleo Harmony < 5.8.0.24 - File Upload Vulnerability","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-55956.yaml"}],"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-08-05T03:55:58.257Z","content_hash":"229cb07e4a9a555daef8c2ffe869419dac15e117542da21217f702c9dbcb1613"}}