CVE WatchJul 31, 2026

CVE-2024-50623

Cleo Multiple Products Unrestricted File Upload Vulnerability

CVSS

9.8

Critical

EPSS

98.6%

p100

KEV

YES

Dec 13, 2024

Exploit Today

0-100

Published: Oct 28, 2024 · Last modified: Jul 31, 2026 · CWE-434

EPSS · 30d

98.5%EPSS · 30 days98.6%

2026-08-022026-08-30

KEV catalog record

Product

Cleo / Multiple Products

Vulnerability

Cleo Multiple Products Unrestricted File Upload Vulnerability

Added to KEV

Dec 13, 2024

Remediate by

Jan 3, 2025

Known ransomware use

Yes

Summary description

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.

Required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Notes

https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update ; https://nvd.nist.gov/vuln/detail/CVE-2024-50623

Technical description

In Cleo Harmony before 5.8.0.21, VLTrader before 5.8.0.21, and LexiCom before 5.8.0.21, there is an unrestricted file upload and download that could lead to remote code execution.

Official references

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