Overview
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.
https://support.cleo.com/hc/en-us/articles/28408134019735-Cleo-Product-Security-Update ; https://nvd.nist.gov/vuln/detail/CVE-2024-50623
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2024-50623 |
| Vendor / Product | Cleo — Multiple Products |
| NVD Published | 2024-10-28 |
| NVD Last Modified | 2025-11-05 |
| CVSS 3.1 Score | 9.8 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| Severity | CRITICAL |
| CWE | CWE-434 |
| CISA KEV Added | 2024-12-13 |
| CISA KEV Deadline | 2025-01-03 |
| Known Ransomware Use | ⚠️ Yes |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Required Action
CISA BOD 22-01 Deadline: 2025-01-03.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2024-12-13 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2025-01-03 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2024-50623 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |