ACTIVELY EXPLOITED

CVE-2024-50623: Cleo Multiple Products Unrestricted File Upload Vulnerability

Facts
VendorCleo
ProductMultiple Products
Actively exploitedYes
Added to CISA KEV13 Dec 2024
CISA federal deadline3 Jan 2025
Ransomware useKnown
Weakness (CWE)CWE-434

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 and download vulnerability that can lead to remote code execution with elevated privileges.

SOURCES

Other Cleo flaws

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.