Zoho ManageEngine - XXE (CVE-2020-10189)
Description
Zoho ManageEngine Desktop Central before 10.0.474 allows remote code execution because of deserialization of untrusted data in getChartImage in the FileStorage class. This is related to the CewolfServlet and MDMLogUploaderServlet servlets.
psychologyCrowdSec Analysis
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 data shows that most actors exploiting CVE-2020-10189 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2020-10189 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2020-10189 is currently experiencing high visibility and active exploitation across the internet.
Detected exploitation attempts often involve access to URLs containing /mdm/client/v1/mdmloguploader, with specific patterns in the request parameters.
Full Intelligence Available
Connect your API key to access CrowdSec scores, exploit timelines, and attacker IPs.
| Event | Date |
|---|---|
| CVE Published | 2020-03-06 |
| CISA KEV | 2021-11-03 |
| CISA Remediation Deadline | 2022-05-03 |
| Rule Released | 2025-05-09 |
| CrowdSec First Seen | 2025-05-12 |
Remediation & Protection
External References
- https://srcincite.io/advisories/src-2020-0011/
- https://www.zdnet.com/article/zoho-zero-day-published-on-twitter/
- https://srcincite.io/pocs/src-2020-0011.py.txt
- https://www.manageengine.com/products/desktop-central/remote-code-execution-vulnerability.html
- https://cwe.mitre.org/data/definitions/502.html
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-10189.yaml