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Vulnerability record · CVE-2026-12591 · published 12 November 2026

CVE-2026-12591: Missing authorization vulnerability

Zohocorp ManageEngine M365 Manager Plus versions below 4818 is affected by an authenticated technician may exploit insufficient permission validation in the delegated administration interface to escalate privileges beyond their intended scope, which could result in remote code execution during administrative processing.

9.9 CVSS 3.1 Critical CWE-862 · Missing authorization Received
9.9CVSS 3.1 base score
-EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
12 Nov 2026Last modified by NVD

Description

Zohocorp ManageEngine M365 Manager Plus versions below 4818 is affected by an authenticated technician may exploit insufficient permission validation in the delegated administration interface to escalate privileges beyond their intended scope, which could result in remote code execution during administrative processing.

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

References

LinkTags
https://www.manageengine.com/microsoft-365-management-reporting/CVE-2026-12591.html

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Source: NIST National Vulnerability Database (record CVE-2026-12591), CISA KEV, FIRST EPSS. This page is refreshed as NVD updates the record.