CVE-2025-30390
Published: 30 April 2025
Summary
CVE-2025-30390 is a critical-severity Improper Authorization (CWE-285) vulnerability in Microsoft Azure Machine Learning. Its CVSS base score is 9.9 (Critical).
Operationally, ranked in the top 37.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2025-30390 is an improper authorization vulnerability in Azure that permits privilege escalation. The flaw is tracked under CWE-285 and carries a CVSS 3.1 score of 9.9, reflecting network attack vector, low complexity, low privileges required, no user interaction, changed scope, and high impact on confidentiality, integrity, and availability.
An authorized attacker with network access can exploit the weakness to elevate privileges within the affected Azure environment, potentially gaining broad control over resources due to the changed scope and high impact metrics.
The Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30390 provides official guidance on the issue. The EPSS score rose from a low baseline to a recorded peak of 0.0107 before settling at the current value of 0.0043, indicating emerging post-disclosure exploitation interest that warrants monitoring.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-12759
Vulnerability details
Improper authorization in Azure allows an authorized attacker to elevate privileges over a network.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Documented procedures facilitate correct implementation and ongoing management of authorization decisions.
Periodic reviews identify and correct flaws in authorization decisions or enforcement.
The control's documentation requirement reduces improper authorization by ensuring only mission-justified actions bypass authentication.
Establishing permitted attributes and values, plus auditing changes, ensures authorization decisions are based on correctly managed policy data.
Explicitly mandates authorizing remote access types before permitting connections, directly mitigating improper authorization.
The control explicitly requires authorization of each wireless access type prior to permitting connections.
Mandating explicit authorization of mobile device connections reduces the risk of improper authorization decisions for system access.
Specifying access authorizations for each account and requiring approvals for account requests enforces proper authorization decisions.