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CVE-2024-50623

CRITICAL9.8
CISA KEV

Published 2024-10-28 · Updated 2026-10-08 · Source cve@mitre.org

Summary

CVE-2024-50623 is a critical-severity (CVSS 9.8) vulnerability in Cleo Multiple Products. CISA added it to the Known Exploited Vulnerabilities catalog on December 13, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by January 3, 2025. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Cleo has 2 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

All 2 known-exploited Cleo vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-434CWE-434

CISA Known-Exploited Vulnerability

Product: Cleo — Multiple Products

Name: Cleo Multiple Products Unrestricted File Upload Vulnerability

Date added: 2024-12-13 · Due: 2025-01-03

USED IN RANSOMWARE

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

View on NVD