What is CVE-2018-18475?

CVE-2018-18475 is a critical-severity vulnerability in Zohocorp Manageengine Opmanager, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-10-23.

How severe is CVE-2018-18475?

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

Arbitrary file upload in Zohocorp Manageengine Opmanager

CVE-2018-18475

Zoho ManageEngine OpManager before 12.3 build 123214 allows Unrestricted Arbitrary File Upload.

Vulnerability class: Unrestricted File Upload

Published 2018-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.204 (97.4th percentile), scored 2026-09-30.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.204 · newest: 0.204 · change: 0.000

Affected products

Zohocorp Manageengine Opmanager — versions 12.3

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

packetstormsecurity.com/files/149878/Zoho-ManageEngine-OpManager-12.3-Arbitrary… (VDB Entry, Third Party Advisory)
seclists.org/fulldisclosure/2018/Oct/42 (mailing-list, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2018-18475?: CVE-2018-18475 is a critical-severity vulnerability in Zohocorp Manageengine Opmanager, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2018-10-23.
How severe is CVE-2018-18475?: Critical severity. CVSS v3 base score is 9.8 out of 10.