CVE-2026-12591
Privilege Escalation
- Critical 9.9
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.
Key facts
- Published
- 12 Nov 2026
- Last changed
- 14 Nov 2026
- Assigned by
- Zohocorp
- EPSS
- 1.661% likely to be exploited in the next 30 days, higher than 77.071% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: none; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.9CVSS 3.1, Criticalfrom the CNA (Zohocorp)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
CAPEC-122 – Privilege Abuse (CNA impact statement)
No explicit remediation statement is available on this page yet. Consult the original record and vendor references before choosing a fix.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Zohocorp | M365 Manager Plus |
|
Timeline
- 12 Nov 2026 Published