CVE-2026-65669

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SQL Injection in Microsoft SQL Server

Publication date: 2026-09-08

Last updated on: 2026-09-09

Assigner: Microsoft Corporation

Description

Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-08

Last Modified

2026-09-09

Generated

2026-09-29

AI Q&A

2026-09-10

EPSS Evaluated

2026-09-27

NVD

CVE-2026-65669

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	sql_server	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-74	The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Attack-Flow Graph

Executive Summary

This is an SQL injection vulnerability in Microsoft SQL Server where improper handling of special characters allows an attacker to inject malicious code. This can lead to unauthorized privilege escalation over a network.

Impact Analysis

An attacker could exploit this to gain elevated access to the database, potentially stealing, modifying, or deleting sensitive data. This could disrupt database operations and lead to data breaches.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or health data, violating GDPR and HIPAA compliance. Organizations may face legal penalties, fines, and reputational damage.

Mitigation Strategies

Apply the latest security updates from Microsoft for SQL Server immediately to patch the injection vulnerability. Monitor Microsoft's update guide for patches and verify installation on all affected systems.

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