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CVE-2024-55956: Cleo Multiple Products Unauthenticated File Upload Vulnerability
Cleo Multiple Products · in CISA KEV since 2024-12-17
2024-12-17added to KEV
2025-01-07federal remediation due date
93.97%EPSS exploit probability (30 days) 99.8th percentile
9.8 CRITICALCVSS 3.1
Knownknown ransomware use
4days from NVD publication to KEV
What it is
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.
Required action (CISA)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| CWE | CWE-276 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2024-12-13 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2024-55956.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.