Description
Improper access control in Azure Resource Manager allows an authorized attacker to elevate privileges over a network.
Published: 2026-01-23
Score: 9.9 Critical
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The vulnerability is an improper access control flaw in Azure Resource Manager that allows an authorized attacker to elevate privileges over the network. An authenticated user with insufficient privileges can acquire higher permissions. This flaw is categorized as CWE-284 and the CVSS score of 9.9 reflects a severe risk to confidentiality, integrity, and availability.

Affected Systems

Affected systems are deployments of Microsoft Azure Resource Manager. The CNA data does not list specific versions; therefore any instance of ARM that has not installed the latest security updates may be impacted.

Risk and Exploitability

Risk is high with a CVSS of 9.9, yet the EPSS score is less than 1% indicating a low immediate exploitation probability, and the vulnerability is not in the CISA KEV catalog. The likely attack vector is a network‑based authenticated access to the ARM API, as the flaw requires an authorized account to manipulate role assignments or permissions. If exploited, an attacker could gain broader control over Azure resources.

Generated by OpenCVE AI on August 5, 2026 at 03:36 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply the latest Azure Resource Manager updates from Microsoft to address the access control flaw.
  • Review and apply least‑privilege RBAC roles to reduce the risk of accidental privilege escalation.
  • Restrict ARM API traffic to trusted networks using firewall or network security group rules.

Generated by OpenCVE AI on August 5, 2026 at 03:36 UTC.

Tracking

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Advisories

No advisories yet.

History

Thu, 30 Jul 2026 21:00:00 +0000

Type Values Removed Values Added
Description Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network. Improper access control in Azure Resource Manager allows an authorized attacker to elevate privileges over a network.
Title Azure Cosmos DB Remote Code Execution Vulnerability Azure Resource Manager Elevation of Privilege Vulnerability
CPEs cpe:2.3:a:microsoft:cosmos_db:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:azure_resource_manager:*:*:*:*:*:*:*:*
Vendors & Products Microsoft cosmos Db
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'}

cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Thu, 30 Jul 2026 19:30:00 +0000

Type Values Removed Values Added
Description Improper access control in Azure Resource Manager allows an authorized attacker to elevate privileges over a network. Improper access control in Azure Cosmos DB allows an unauthorized attacker to execute code over a network.
Title Azure Resource Manager Elevation of Privilege Vulnerability Azure Cosmos DB Remote Code Execution Vulnerability
First Time appeared Microsoft cosmos Db
CPEs cpe:2.3:a:microsoft:azure_resource_manager:*:*:*:*:*:*:*:* cpe:2.3:a:microsoft:cosmos_db:*:*:*:*:*:*:*:*
Vendors & Products Microsoft cosmos Db
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}

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'}


Thu, 26 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 12 Feb 2026 17:30:00 +0000

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

Fri, 23 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Fri, 23 Jan 2026 02:00:00 +0000

Type Values Removed Values Added
Description Improper access control in Azure Resource Manager allows an authorized attacker to elevate privileges over a network.
Title Azure Resource Manager Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft azure Resource Manager
Weaknesses CWE-284
CPEs cpe:2.3:a:microsoft:azure_resource_manager:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft azure Resource Manager
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}


Subscriptions

Microsoft Azure Resource Manager
cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-07-30T20:47:35.472Z

Reserved: 2026-01-21T21:28:02.969Z

Link: CVE-2026-24304

cve-icon Vulnrichment

Updated: 2026-01-23T19:57:27.603Z

cve-icon NVD

Status : Modified

Published: 2026-01-23T02:15:55.547

Modified: 2026-07-30T21:17:14.083

Link: CVE-2026-24304

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-05T03:45:03Z

Weaknesses