Vulnerability Intelligence Report
Microsoft Entra ID Elevation of Privilege Vulnerability
CVE-2026-42901
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
No Active Exploit Signals
CVSS Base Score
10.0
CRITICAL
Exploitability:3.9
Impact Score:6.1
EPSS Probability:0.30%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-346 ↗CWE-346: Origin Validation Error
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft Entra | - (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.301%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-04-30T22:35:54 |
| Published | 2026-05-22T22:04:40 |
| Patch Date | 2026-05-21 |
| Last Updated | 2026-08-10T15:13:56 |
Community Chatter & Buzz