CVE-2026-73028
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Improper Access Control in SQL Server

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

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Meta Information

Published
2026-09-08
Last Modified
2026-09-09
Generated
2026-09-09
AI Q&A
2026-09-09
EPSS Evaluated
N/A
NVD
CVE-2026-73028

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft sql_server *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

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Executive Summary

This vulnerability is an improper access control flaw in SQL Server. An authorized attacker can exploit it over a network to elevate their privileges, gaining higher permissions than intended.

Impact Analysis

An attacker could gain unauthorized access to sensitive data, modify or delete database records, or execute administrative commands. This could lead to data breaches, system compromise, or service disruption.

Compliance Impact

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

Mitigation Strategies

Apply the latest security updates from Microsoft for SQL Server immediately to address improper access control issues. Monitor Microsoft's update guide for patches and verify installation on all affected systems.

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