CVE-2026-62836

Analyzed Analyzed - Analysis Complete

Improper Channel Restriction Leads to Privilege Escalation in Azure SQL Managed Instance

Publication date: 2026-08-07

Last updated on: 2026-08-12

Assigner: Microsoft Corporation

Description

Improper restriction of communication channel to intended endpoints in Azure SQL Managed Instance allows an unauthorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-08-07

Last Modified

2026-08-12

Generated

2026-08-27

AI Q&A

2026-08-07

EPSS Evaluated

2026-08-26

NVD

CVE-2026-62836

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	azure_sql_managed_instance	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-923	The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper restriction of communication channels in Azure SQL Managed Instance. An unauthorized attacker can exploit this to elevate their privileges over a network by bypassing intended endpoint restrictions.

Detection Guidance

Detection requires monitoring network traffic to Azure SQL Managed Instance for unauthorized privilege elevation attempts. Check for unusual outbound connections or unexpected administrative access patterns. Use Azure Monitor and SQL audit logs to review authentication and authorization events for anomalies.

Impact Analysis

An attacker could gain elevated access to Azure SQL Managed Instance, potentially leading to unauthorized data access, manipulation, or control over database operations. This may result in data breaches or service disruptions.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements such as GDPR or HIPAA. Organizations may face legal penalties, reputational damage, and loss of trust due to data exposure.

Mitigation Strategies

Apply the latest security updates from Microsoft for Azure SQL Managed Instance as soon as possible to address the improper communication channel restriction.

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