Zoho ManageEngine - XXE (CVE-2020-10189)

CVE-2020-10189 is a critical remote code execution vulnerability in Zoho ManageEngine Desktop Central, stemming from unsafe deserialization in certain servlet components.

CrowdSec has been tracking this vulnerability and its exploits since 9th of May 2025.

CrowdSec network observations suggest that most exploitation of CVE-2020-10189 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. CrowdSec network telemetry also shows that exploitation of CVE-2020-10189 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.

Detected exploitation attempts often involve access to URLs containing /mdm/client/v1/mdmloguploader, with specific patterns in the request parameters.