CVE-2026-47280: CWE-287: Improper Authentication in Microsoft Azure Resource Manager
Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability, identified as CWE-287 (Improper Authentication), affects Microsoft Azure Resource Manager, enabling unauthorized attackers to elevate privileges remotely without user interaction. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, scope changed, and high impact on confidentiality, integrity, and availability. The vulnerability is in a cloud service, and Microsoft manages remediation by applying an official fix.
Potential Impact
An attacker exploiting this vulnerability can gain elevated privileges in Azure Resource Manager, potentially leading to full control over affected resources. This compromises confidentiality, integrity, and availability of the cloud environment managed by ARM.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation server-side. Users should verify the application of the fix via the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47280 and follow any additional guidance provided there.
CVE-2026-47280: CWE-287: Improper Authentication in Microsoft Azure Resource Manager
Description
Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a network.
CVSS v3.1
Score 10.0critical
Affected software
Microsoft
Azure Resource Manager
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CWE-287 (Improper Authentication), affects Microsoft Azure Resource Manager, enabling unauthorized attackers to elevate privileges remotely without user interaction. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, no user interaction, scope changed, and high impact on confidentiality, integrity, and availability. The vulnerability is in a cloud service, and Microsoft manages remediation by applying an official fix.
Potential Impact
An attacker exploiting this vulnerability can gain elevated privileges in Azure Resource Manager, potentially leading to full control over affected resources. This compromises confidentiality, integrity, and availability of the cloud environment managed by ARM.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. As this is a cloud-hosted service, Microsoft manages the remediation server-side. Users should verify the application of the fix via the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47280 and follow any additional guidance provided there.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-18T23:53:33.895Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47280","vendor":"Microsoft"}]
Threat ID: 6a10d8e7e1370fbb485de151
Added to database: 05/22/2026, 22:29:59 UTC
Last enriched: 08/11/2026, 16:59:20 UTC
Last updated: 09/14/2026, 23:36:48 UTC
Views: 222
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