CVE-2026-12591— Privilege Escalation
Quick assessment
Affected
Zohocorp M365 Manager Plus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Zoho Corp 的 ManageEngine M365 Manager Plus 版本低于 4818 存在漏洞：已认证的技术人员可利用委派管理界面中权限验证不足的问题，将权限提升至超出其预期范围，从而在管理处理过程中导致远程代码执行。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1212 · Exploitation for Credential Access T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-12591
Vulnerability Information
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Vulnerability Title
Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Zohocorp | M365 Manager Plus | 0 ~ 4818 | - |
|
II. Public POCs for CVE-2026-12591
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-12591 (1)
IV. Related Vulnerabilities
Same weakness: CWE-862