---
title: "CVE-2026-76979: ZohoCorp ManageEngine OpManager & Firewall Analyzer - XML External Entity Injection"
description: "ZohoCorp ManageEngine OpManager and Firewall Analyzer <= 12.8.709 contain an xml external entity injection caused by improper input handling in the Rule Tracking Compare Policies feature, letting attackers perform XML injection remotely, exploit requires no special privileges."
url: https://panop.io/threat-heartbeat/CVE-2026-76979/
---

# CVE-2026-76979 ZohoCorp ManageEngine OpManager & Firewall Analyzer - XML External Entity Injection

ZohoCorp ManageEngine OpManager and Firewall Analyzer <= 12.8.709 contain an xml external entity injection caused by improper input handling in the Rule Tracking Compare Policies feature, letting attackers perform XML injection remotely, exploit requires no special privileges.

CVSS base score 7.7 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

1.13% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-76979)

## Details

Type

XML External Entity Injection

Impact

XML External Entity Injection

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Published

23 September 2026

Updated

15 October 2026

Weakness

[CWE-91](https://cwe.mitre.org/data/definitions/91.html)

## Vendor fix

Update to the latest version above 12.8.709.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-76979](https://nvd.nist.gov/vuln/detail/CVE-2026-76979)
- [https://www.manageengine.com/itom/advisory/cve-2026-76979.html](https://www.manageengine.com/itom/advisory/cve-2026-76979.html)

[← All CVEs](https://panop.io/threat-heartbeat/)

## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

[Book a demo](https://panop.io/demo)