What is CVE-2021-40175?

CVE-2021-40175 is a critical-severity vulnerability in Zohocorp Manageengine Log360, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-08-29.

How severe is CVE-2021-40175?

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

Arbitrary file upload in Zohocorp Manageengine Log360

CVE-2021-40175

Zoho ManageEngine Log360 before Build 5219 allows unrestricted file upload with resultant remote code execution.

Vulnerability class: Unrestricted File Upload

Published 2021-08-29 · 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: 0.070 (94.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.070 · newest: 0.070 · change: 0.000

Affected products

Zohocorp Manageengine Log360 — versions 5.2

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

www.manageengine.com/log-management/readme.html (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-40175?: CVE-2021-40175 is a critical-severity vulnerability in Zohocorp Manageengine Log360, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-08-29.
How severe is CVE-2021-40175?: Critical severity. CVSS v3 base score is 9.8 out of 10.