Uncontrolled Resource Consumption in SQL Server

Publication date: 2026-10-13

Last updated on: 2026-10-15

Assigner: Microsoft Corporation

Description

Uncontrolled resource consumption in SQL Server allows an authorized attacker to deny service over a network.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-15

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-67626

Affected Vendors & Products

Vendor	Product	Version / Range
Microsoft	Microsoft	SQL Server 2022 (GDR) 16.0.0
Microsoft	Microsoft	SQL Server 2022 for x64-based Systems (CU27) 16.0.4003.1
Microsoft	Microsoft	SQL Server 2025 for x64-based Systems (CU9) 17.0.4006.2
Microsoft	Microsoft	SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This vulnerability involves uncontrolled resource consumption in SQL Server. An authorized attacker can exploit it to deny service over a network by consuming excessive resources.

Impact Analysis

The impact includes service disruption as the SQL Server may become unavailable due to resource exhaustion. Authorized users may experience degraded performance or complete denial of service.

Mitigation Strategies

Apply the latest cumulative update for your SQL Server version to patch the uncontrolled resource consumption issue. Monitor network traffic for unusual SQL Server activity and restrict unauthorized access to the database service.

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