CVE-2026-84789
Received Received - Intake

Broken Access Control in Zoho ManageEngine OpManager

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: ManageEngine

Description
ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below were vulnerable to a Broken Access Control vulnerability that allowed an authenticated low-privilege user to create alert notifications for firewalls outside their assigned scope.

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Meta Information

Published
2026-09-23
Last Modified
2026-09-23
Generated
2026-09-23
AI Q&A
2026-09-23
EPSS Evaluated
N/A
NVD
CVE-2026-84789
EUVD
EUVD-2026-85261

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
zoho manageengine_opmanager to 12.8.710 (exc)
zoho firewall_analyzer to 12.8.710 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This is a Broken Access Control vulnerability in ZohoCorp ManageEngine OpManager and Firewall Analyzer versions 12.8.710 and below. It allows an authenticated low-privilege user to create alert notifications for firewalls outside their assigned scope.

Detection Guidance

Detecting this vulnerability requires checking for unauthorized alert notifications created by low-privilege users in Zoho ManageEngine OpManager or Firewall Analyzer. Review audit logs for alert creation events outside assigned scopes and verify user permissions. No specific commands are provided in the context.

Impact Analysis

An attacker with low privileges could escalate their access to view or manipulate firewall alerts beyond their intended scope, potentially leading to unauthorized changes or data exposure.

Compliance Impact

This vulnerability could lead to unauthorized access or data exposure, which may violate compliance requirements for GDPR (data protection) and HIPAA (health information security) due to improper access controls.

Mitigation Strategies

Update ZohoCorp ManageEngine OpManager and Firewall Analyzer to versions above 12.8.710 to address the Broken Access Control vulnerability. Ensure only authorized users have access to create alert notifications and review firewall scopes for unauthorized changes.

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