# CVE-2026-62916: Microsoft Entra ID authentication bypass and privilege escalation

Source: https://junglewise.ai/threats/cve-2026-62916-microsoft-entra-id-authentication-bypass-and-privilege-escalation  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-03. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-62916 · Severity: critical · CVSS 9.1 · Published 2026-09-03

Microsoft Entra ID (formerly Azure AD) is the identity and access management service that secures authentication and authorization for Microsoft cloud services and enterprise applications. A critical authentication bypass vulnerability allows remote attackers to bypass security controls and escalate their privileges without proper authorization, potentially compromising access to sensitive cloud resources and organizational data across Microsoft 365 and connected applications.

Technologies: [Microsoft Entra ID](https://junglewise.ai/threats/technologies/entra-id). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-62916 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-62916 being exploited in the wild.

**How severe is CVE-2026-62916?** Critical severity, with a CVSS score of 9.1, published 3 September 2026.

**Which products and versions are affected?** Microsoft Entra ID <UNKNOWN>.

**Is there a fix for CVE-2026-62916?** 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-2026-62916 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-62916?** Check whether you run Microsoft Entra ID at an affected version. 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

This vulnerability is an authentication bypass in Microsoft Entra ID that exploits an alternate path or channel in the authentication mechanism, allowing an unauthenticated remote attacker to elevate privileges over the network. The vulnerability does not require user interaction or pre-existing privileges. An attacker can bypass the primary authentication controls by leveraging an unprotected secondary channel, leading to complete compromise of affected identities and potential lateral movement throughout the cloud infrastructure. Microsoft has released patches through their Security Update Guide.

## Affected products

- Microsoft Entra ID <UNKNOWN>

## Timeline

- 2026-09-03: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62916](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62916)

## Related threats

- [Microsoft Entra ID privilege escalation via missing authorization](https://junglewise.ai/threats/cve-2026-83941-microsoft-entra-id-privilege-escalation-via-missing-authorization)
- [Microsoft Azure Active Directory SSRF privilege escalation](https://junglewise.ai/threats/cve-2026-69851-microsoft-azure-active-directory-ssrf-privilege-escalation)
- [Microsoft Entra ID deserialization of untrusted data remote code execution](https://junglewise.ai/threats/cve-2026-69836-microsoft-entra-id-deserialization-of-untrusted-data-remote-code)
- [Insufficient verification of data authenticity in Azure Entra ID allows an authorized attacker to perform spoofing over a network.](https://junglewise.ai/threats/cve-2026-62869-insufficient-verification-of-data-authenticity-in-azure-entra-id)
- [Microsoft Azure Active Directory improper authentication privilege escalation](https://junglewise.ai/threats/cve-2026-45480-microsoft-azure-active-directory-improper-authentication)