ACTIVELY EXPLOITED
CVE-2024-55956: Cleo Multiple Products Unauthenticated File Upload Vulnerability
| Vendor | Cleo |
|---|---|
| Product | Multiple Products |
| Actively exploited | Yes |
| Added to CISA KEV | 17 Dec 2024 |
| CISA federal deadline | 7 Jan 2025 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-276 |
Required action (CISA's text)
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other Cleo flaws
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.