Cleo - RCE (CVE-2024-50623)
370Exploiting IPs reported
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.
CrowdSec analysis
CVE-2024-50623 is a critical vulnerability in Cleo Harmony, VLTrader, and LexiCom that allows for unrestricted file upload and download, potentially resulting in remote code execution.
CrowdSec has been tracking this vulnerability and its exploits since 10th of March 2025.
CrowdSec network data shows that most actors exploiting CVE-2024-50623 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. CrowdSec data also reveals a clear uptick in attacks involving CVE-2024-50623 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.
Observed attack attempts are primarily focused on the /synchronization endpoint.
Exploitation
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Common Weakness Enumeration (CWE)
Protection
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Blocklist
With our advanced worldwide network detection, CrowdSec can provide a list of IPs known for exploiting the vulnerability.
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