Vulnerability · Published May 22, 2026 · Assigned by microsoft
CVE-2026-42901Microsoft Entra ID Elevation of Privilege Vulnerability
Critical 10.0
In plain English
A critical-severity security flaw in Microsoft Entra from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 23% of all known vulnerabilities).
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)0.3%top 77.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Origin validation error in Microsoft Entra ID allows an unauthorized attacker to elevate privileges over a network.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Entra | - |
Weakness: CWE-346 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C
References
- Microsoft Entra ID Elevation of Privilege Vulnerability vendor-advisory, patch