Skip to main content
Live Webinar with SANS (June 25)— Agentic CTI Automation for Fun & ProfitRegister Free
Mallory
Critical

Elevation of Privilege in Microsoft Azure Entra ID

IdentifiersCVE-2025-59218CWE-284· Improper Access Control

CVE-2025-59218 is a critical elevation-of-privilege vulnerability affecting Microsoft Azure Entra ID. Public reporting describes it as an improper access control issue in the Entra ID identity platform, with a CVSS score of 9.6. As of the provided source material, no public technical details disclose the precise exploit mechanism, root cause, vulnerable function, affected code path, version scope, or configuration prerequisites. Based on the available information, the flaw could allow unauthorized privilege elevation within Azure Entra ID’s authentication and authorization environment, impacting access control decisions in a core cloud identity service used for Microsoft 365, Azure, and third-party applications.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation could allow an attacker to elevate privileges within Azure Entra ID and gain unauthorized access to higher-privileged identity or authorization capabilities. Because Entra ID is a central identity and access management platform, compromise could have broad downstream impact across tenant resources, enterprise applications, Microsoft 365, Azure services, and federated or integrated third-party applications. The exact technical impact beyond privilege elevation is not publicly disclosed in the provided material.

Mitigation

If you can’t patch tonight, do this now.

No specific mitigation measures for CVE-2025-59218 are provided in the supplied content. In the absence of vendor-published CVE-specific mitigations, organizations should reduce exposure by enforcing least privilege, reviewing privileged role assignments, monitoring Entra ID audit and sign-in logs for anomalous privilege changes or token activity, restricting legacy or unnecessary identity integrations where possible, and validating conditional access and cross-tenant access policies. These are general risk-reduction measures, not confirmed vendor mitigations for this specific CVE.

Remediation

Patch, then assume compromise.

Apply Microsoft’s October 2025 security updates for Azure Entra ID and follow Microsoft’s official guidance for this CVE. The provided material indicates Microsoft fixed CVE-2025-59218, but does not include product-specific remediation steps, affected version boundaries, or architectural changes. Because Azure Entra ID is a cloud service, remediation is likely primarily server-side by Microsoft, but customers should verify any tenant-side actions in Microsoft advisories if available.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Microsoft CorporationEntra Idapplication
Microsoft CorporationMicrosoft Entra Idapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity3

Community discussion across Reddit, Mastodon, and other social sources.