CVE-2026-73028

Analyzed Analyzed - Analysis Complete

Improper Access Control in SQL Server

Publication date: 2026-09-08

Last updated on: 2026-09-15

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-08

Last Modified

2026-09-15

Generated

2026-09-29

AI Q&A

2026-09-09

EPSS Evaluated

2026-09-27

NVD

CVE-2026-73028

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sql_server_2022	to 16.0.1200.5 (exc)
microsoft	sql_server_2022	From 16.0.4003.1 (inc) to 16.0.4275.2 (exc)
microsoft	sql_server_2017	to 14.0.2130.4 (exc)
microsoft	sql_server_2017	From 14.0.3006.16 (inc) to 14.0.3550.4 (exc)
microsoft	sql_server_2019	to 15.0.2190.7 (exc)
microsoft	sql_server_2019	From 15.0.4003.23 (inc) to 15.0.4490.9 (exc)
microsoft	sql_server_2025	to 17.0.1135.8 (exc)
microsoft	sql_server_2025	From 17.0.4006.2 (inc) to 17.0.4085.5 (exc)

Helpful Resources

Exploitability

CWE

KEV

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

Attack-Flow Graph

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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