RCE in Zohocorp Manageengine Firewall Analyzer

CVE-2026-76978

ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.709 and below were vulnerable to a Command Injection vulnerability in the Diagnose Settings feature.

Vulnerability class: Command Injection (OS Command Injection)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.081 (94.9th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-76978: rose from 0.037 to 0.081.

EPSS over last 30 days · oldest: 0.037 · newest: 0.081 · change: +0.044

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-76978?
CVE-2026-76978 is a high-severity vulnerability in Zohocorp Manageengine Firewall Analyzer, classified under OS Command Injection. CVSS score: 8.8/10. Published 2026-09-23.
How severe is CVE-2026-76978?
High severity. CVSS v3 base score is 8.8 out of 10.