CVE-2024-50623
In Cleo Harmony before 5.8.0.20, VLTrader before 5.8.0.20, and LexiCom before 5.8.0.20, there is...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2024-50623- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
CVE List
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.
- Record
CVE-2024-50623- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-434
- Updated
- 2026-11-02
EUVDEUVD-2024-45217
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.
- Record
EUVD-2024-45217- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-8j74-v9cr-x39h
In Cleo Harmony before 5.8.0.20, VLTrader before 5.8.0.20, and LexiCom before 5.8.0.20, there is...
In Cleo Harmony before 5.8.0.20, VLTrader before 5.8.0.20, and LexiCom before 5.8.0.20, there is a JavaScript Injection vulnerability.
- Record
GHSA-8j74-v9cr-x39h- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-79, CWE-434
- Updated
- 2026-11-02
CISA KEV No score
Cleo Multiple Products Unrestricted File Upload Vulnerability
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.
- Record
CVE-2024-50623- Weakness
- CWE-434
- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Metasploit | Cleo LexiCom, VLTrader, and Harmony Unauthenticated Remote Code Execution | 2024-12-09 |
| PoC in GitHub | watchtowrlabs/CVE-2024-50623 | 2024-12-11 |
| PoC in GitHub | verylazytech/CVE-2024-50623 | 2024-12-23 |
| PoC in GitHub | iSee857/Cleo-CVE-2024-50623-PoC | 2024-12-31 |
| PoC in GitHub | congdong007/CVE-2024-50623-poc | 2025-04-01 |
| Nuclei | Cleo Harmony < 5.8.0.21 - Arbitary File Read |
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation, exploits | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, Metasploit, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-50623 is a critical vulnerability (CVSS 9.8) in Cleo Harmony, published October 27, 2024. CISA lists it as known to be exploited, since December 13, 2024. EUVD reports exploitation since December 13, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 98.6%, the 99th percentile. No source names a fixed version.