CVE-2026-69555: CWE-863: Incorrect Authorization in Microsoft Azure ARC
Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-69555) in Microsoft Azure ARC is classified as CWE-863 (Incorrect Authorization). It enables an attacker without privileges to elevate their privileges remotely over the network, potentially gaining full control. 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 and integrity. Microsoft has published an official fix and manages remediation for this cloud-hosted service.
Potential Impact
An attacker can remotely elevate privileges without prior authorization, compromising confidentiality and integrity of the Azure ARC environment. This could lead to unauthorized access and control over resources managed by Azure ARC. Availability impact is not indicated.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Since Azure ARC is a cloud service, Microsoft manages the remediation server-side. Users should refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69555 for confirmation and ensure their Azure ARC instances are updated accordingly.
CVE-2026-69555: CWE-863: Incorrect Authorization in Microsoft Azure ARC
Description
Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
CVSS v3.1
Score 10.0critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-69555) in Microsoft Azure ARC is classified as CWE-863 (Incorrect Authorization). It enables an attacker without privileges to elevate their privileges remotely over the network, potentially gaining full control. 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 and integrity. Microsoft has published an official fix and manages remediation for this cloud-hosted service.
Potential Impact
An attacker can remotely elevate privileges without prior authorization, compromising confidentiality and integrity of the Azure ARC environment. This could lead to unauthorized access and control over resources managed by Azure ARC. Availability impact is not indicated.
Mitigation Recommendations
Microsoft has released an official fix for this vulnerability. Since Azure ARC is a cloud service, Microsoft manages the remediation server-side. Users should refer to the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69555 for confirmation and ensure their Azure ARC instances are updated accordingly.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-03T21:15:56.834Z
- 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-2026-69555","vendor":"Microsoft"}]
Threat ID: 6a87778cacd9273b492c5eee
Added to database: 08/20/2026, 21:54:20 UTC
Last enriched: 08/20/2026, 22:09:12 UTC
Last updated: 08/21/2026, 02:00:02 UTC
Views: 7
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