How severe is CVE-2021-42002?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2021-42002 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Zohocorp Manageengine Admanager Plus

CVE-2021-42002

Zoho ManageEngine ADManager Plus before 7115 is vulnerable to a filter bypass that leads to file-upload remote code execution.

Published 2021-11-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.075 (94.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.072 · newest: 0.075 · change: +0.002

Affected products

Zohocorp Manageengine Admanager Plus — versions 7.1

Public proof-of-concept exploits

References

www.manageengine.com/products/ad-manager/release-notes.html (Vendor Advisory)

Frequently asked questions

What is CVE-2021-42002?: CVE-2021-42002 is a critical-severity vulnerability in Zohocorp Manageengine Admanager Plus. CVSS score: 9.8/10. Published 2021-11-11.
How severe is CVE-2021-42002?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2021-42002 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.