CVE-2024-50623

Name: CVE-2024-50623
Creator: NVD / NIST
Published: 2024-10-28T00:15:03.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10Actively ExploitedEPSS 98.53%

Last modified Jun 17, 2026

CVE-2024-50623 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 98.53% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

98.53%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Jan 3, 2025.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cleo	Harmony	< 5.8.0.21
Cleo	Lexicom	< 5.8.0.21
Cleo	Vltrader	< 5.8.0.21

References

https://support.cleo.com/hc/en-us/articles/27140294267799-Cleo-Product-Security-AdvisoryVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-50623US Government Resource

Timeline

Published: Oct 28, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-50623?

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.

How severe is CVE-2024-50623?

CVE-2024-50623 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 98.53% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2024-50623?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-50623?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST