CVE-2026-12370
Received Received - Intake

Server-Side Template Injection in Zoho ManageEngine OpManager

Publication date: 2026-09-23

Last updated on: 2026-09-23

Assigner: ManageEngine

Description
ZohoCorp ManageEngine OpManager, NetFlow Analyzer, and Network Configuration Manager versions 12.8.667 and below were vulnerable to a Server-Side Template Injection vulnerability in Configlet processing, which could lead to Remote Code Execution.

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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-2026-12370
EUVD
EUVD-2026-85228

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
zoho manageengine_opmanager 12.8.667
zoho manageengine_netflow_analyzer 12.8.667
zoho manageengine_network_configuration_manager 12.8.667

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-1336 The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.

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Executive Summary

This is a Server-Side Template Injection (SSTI) vulnerability in Zoho ManageEngine products like OpManager, NetFlow Analyzer, and Network Configuration Manager. It allows attackers to inject malicious code into template processing, potentially leading to Remote Code Execution (RCE) on affected systems.

Impact Analysis

An attacker could exploit this to execute arbitrary code on your server, gain unauthorized access, steal data, or disrupt services. The impact depends on the product and system configuration, but it poses a high risk due to the potential for full system compromise.

Compliance Impact

This vulnerability could lead to unauthorized data access or breaches, violating GDPR (data protection) and HIPAA (health data security) requirements. Non-compliance may result in legal penalties, fines, or reputational damage.

Mitigation Strategies

Update affected ManageEngine products to the latest fixed versions listed in the vendor advisory. Download and apply the latest upgrade packs from ZohoCorp's official site for OpManager, NetFlow Analyzer, and Network Configuration Manager.

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