Description
Missing authentication for critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
Published: 2026-09-17
Score: 10 Critical
EPSS: < 1% Very Low
KEV: No
Impact: Elevation of Privilege
Action: Immediate Patch
AI Analysis

Impact

A missing authentication check for a critical function in Azure AI Foundry allows an attacker who can reach the service over the network to gain elevated privileges. This flaw corresponds to the improper authorization weakness designated CWE-306. Because the function is not protected, an unauthenticated user can execute actions normally reserved for privileged accounts, potentially compromising the integrity and availability of the platform and any data processed by it.

Affected Systems

Microsoft Azure AI Foundry is impacted. No specific version information is provided; all deployments of the service are potentially vulnerable until a patch is applied.

Risk and Exploitability

The vulnerability carries a CVSS score of 10, indicating that a successful exploit would provide complete control over the targeted system. The EPSS score of less than 1% suggests a low probability that an attacker has already found a workable exploit at this time, and the issue is not yet listed in CISA's KEV catalog. The likely attack vector is over the network, targeting any host or service that hosts Azure AI Foundry without proper authentication guards. Attackers would need network access to the exposed endpoint; once accessed, privilege escalation can be achieved without additional authentication.

Generated by OpenCVE AI on September 19, 2026 at 00:04 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Apply the vendor-released patch or update that addresses the missing authentication for the critical function in Azure AI Foundry immediately.
  • If an update is not yet available, disable or restrict network access to the affected endpoint using firewalls or network segmentation to prevent unauthenticated users from reaching the vulnerable function.
  • Implement additional authentication controls, such as enforcing multi-factor authentication or role-based access control, to guard against future similar issues and mitigate improper authorization weaknesses.

Generated by OpenCVE AI on September 19, 2026 at 00:04 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 25 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:azure_ai_foundry:-:*:*:*:*:*:*:*

Fri, 18 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 17 Sep 2026 23:15:00 +0000

Type Values Removed Values Added
Description Missing authentication for critical function in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.
Title Azure AI Foundry Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft azure Ai Foundry
Weaknesses CWE-306
CPEs cpe:2.3:a:microsoft:azure_ai_foundry:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Ai Foundry
References
Metrics cvssV3_1

{'score': 10, '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'}


Subscriptions

Microsoft Azure Ai Foundry
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-10-08T18:12:12.432Z

Reserved: 2026-09-04T18:18:19.328Z

Link: CVE-2026-85889

cve-icon Vulnrichment

Updated: 2026-09-18T14:30:36.774Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-17T23:18:53.217

Modified: 2026-09-25T14:31:39.617

Link: CVE-2026-85889

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-19T00:15:13Z

Weaknesses
  • CWE-306

    Missing Authentication for Critical Function