CVE-2026-65816

Analyzed Analyzed - Analysis Complete

Use of Incorrectly-Resolved Name in Azure Arc Allows Privilege Escalation

Publication date: 2026-08-20

Last updated on: 2026-08-24

Assigner: Microsoft Corporation

Description

Use of incorrectly-resolved name or reference in Azure Arc allows an unauthorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-20

Last Modified

2026-08-24

Generated

2026-09-10

AI Q&A

2026-08-21

EPSS Evaluated

2026-09-09

NVD

CVE-2026-65816

EUVD

EUVD-2026-63621

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	azure_web_apps	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-706	The product uses a name or reference to access a resource, but the name/reference resolves to a resource that is outside of the intended control sphere.

Attack-Flow Graph

Executive Summary

This vulnerability involves Azure Arc incorrectly resolving a name or reference, allowing an unauthorized attacker to escalate privileges over a network. It is a high-severity issue with a CVSS score of 10.0, indicating maximum impact and exploitability.

Impact Analysis

An attacker could gain full control over affected Azure Arc systems, leading to unauthorized access, data breaches, or further network compromise. The high CVSS score suggests widespread potential impact.

Compliance Impact

The vulnerability allows unauthorized privilege escalation over a network due to incorrect name resolution in Azure Arc. This could lead to unauthorized access to sensitive data or systems, potentially violating compliance requirements under GDPR, HIPAA, or other regulations that mandate strict access controls and data protection measures.

Mitigation Strategies

Apply the latest security updates from Microsoft for Azure Arc. Review and restrict network access to Azure Arc components. Monitor for unauthorized privilege escalation attempts.

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