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CVE-2026-65669— Microsoft SQL Server Elevation of Privilege Vulnerability

Quick assessment

Affected

Microsoft SQL Server Management Studio 22

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microsoft SQL Server是美国Microsoft公司的一个关系型数据库管理系统。 Microsoft SQL Server存在输入验证错误漏洞，该漏洞源于对下游组件使用的输出中的特殊元素中和不当（注入），可能允许未经授权的攻击者通过网络提升权限。

CVSS 9.6 · Critical EPSS 0.86% · P59 Updated Nov 01, 2026

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Microsoft	SQL Server Management Studio 22	`22.0< 22.8.2`	affected

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I. Basic Information for CVE-2026-65669

Vulnerability Information

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Vulnerability Title

Microsoft SQL Server Elevation of Privilege Vulnerability

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

输出中的特殊元素转义处理不恰当(注入)

Source: CVE Program / CVE List V5

Vulnerability Title

Microsoft SQL Server 输入验证错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Microsoft	SQL Server Management Studio 22	22.0 ~ 22.8.2	-

II. Public POCs for CVE-2026-65669

#	POC Description	Source Link	Shenlong Link

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No public POC found.

III. Intelligence Information for CVE-2026-65669

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Vendor Advisories for CVE-2026-65669 (1)

🔗 CVE-2026-65669 - Security Update Guide - Microsoft - Microsoft SQL Server Elevation of Privilege Vulnerability vendor-advisory patch

https://www.cve.org/CVERecord?id=CVE-2026-65669

Same Patch Batch · Microsoft · 2026-09-08 · 966 CVEs total

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CVE-2026-69768	9.8 CRITICAL	Windows RNDIS Remote Code Execution Vulnerability
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Showing top 20 of 966 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same vendor: Microsoft

Same weakness: CWE-74