Quick answers
- Is CVE-2026-23663 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-23663 being exploited in the wild.
- How severe is CVE-2026-23663?
- High severity, with a CVSS score of 7.5, published 22 May 2026.
- Which products and versions are affected?
- Microsoft Entra ID.
- Is there a fix for CVE-2026-23663?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-23663 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-23663?
- Check whether you run Microsoft Entra ID. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A privilege escalation vulnerability exists in Microsoft Entra ID due to improper privilege management (CWE-269). The flaw allows an unauthenticated attacker to elevate their permissions via a network-based attack vector without requiring user interaction. According to the CVSS vector, the exploit results in high confidentiality impact but does not directly impact integrity or availability. As Entra ID is an exclusively hosted cloud service, Microsoft typically manages the deployment of fixes on the backend.
Affected products
- Microsoft Entra ID
Timeline
- 2026-05-22: disclosed
- 2026-05-22: advisory