Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-20803— Microsoft SQL Server Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Microsoft SQL Server 2022 (GDR)
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是美国微软（Microsoft）公司的一套应用在Microsoft Windows系统下的大型商业数据库系统。 Microsoft SQL Server存在访问控制错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Microsoft SQL Server 2022 for x64-based Systems (GDR),Microsoft SQL Server 2025 for x64-based Systems (GDR),Microsoft SQL

CVSS 7.2 · High EPSS 1.27% · P69

Affected Version Matrix 3

VendorProduct Version RangeStatus
Microsoft Microsoft SQL Server 2022 (GDR) 16.0.0< 16.0.1165.1 affected
Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU 22) 16.0.0.0< 16.0.4230.2 affected
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2< 17.0.1050.2 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-20803

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Microsoft SQL Server Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft SQL Server 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft SQL Server是美国微软（Microsoft）公司的一套应用在Microsoft Windows系统下的大型商业数据库系统。 Microsoft SQL Server存在访问控制错误漏洞。攻击者利用该漏洞可以提升权限。以下产品和版本受到影响：Microsoft SQL Server 2022 for x64-based Systems (GDR),Microsoft SQL Server 2025 for x64-based Systems (GDR),Microsoft SQL
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 Microsoft SQL Server 2022 (GDR) 16.0.0 ~ 16.0.1165.1 -
Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU 22) 16.0.0.0 ~ 16.0.4230.2 -
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 ~ 17.0.1050.2 -

II. Public POCs for CVE-2026-20803

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-20803

请登录查看更多情报信息。

Same Patch Batch · Microsoft · 2026-01-13 · 112 CVEs total

CVE-2026-20963 9.8 CRITICAL Microsoft SharePoint Remote Code Execution Vulnerability
CVE-2026-20947 8.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-20868 8.8 HIGH Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-20952 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2026-20944 8.4 HIGH Microsoft Word Remote Code Execution Vulnerability
CVE-2026-20953 8.4 HIGH Microsoft Office Remote Code Execution Vulnerability
CVE-2026-20856 8.1 HIGH Windows Server Update Service (WSUS) Remote Code Execution Vulnerability
CVE-2026-20931 8.0 HIGH Windows Telephony Service Elevation of Privilege Vulnerability
CVE-2026-20857 7.8 HIGH Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
CVE-2026-20924 7.8 HIGH Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20922 7.8 HIGH Windows NTFS Remote Code Execution Vulnerability
CVE-2026-20843 7.8 HIGH Windows Routing and Remote Access Service (RRAS) Elevation of Privilege Vulnerability
CVE-2026-20920 7.8 HIGH Win32k Elevation of Privilege Vulnerability
CVE-2026-20837 7.8 HIGH Windows Media Remote Code Execution Vulnerability
CVE-2026-21224 7.8 HIGH Azure Connected Machine Agent Elevation of Privilege Vulnerability
CVE-2026-20840 7.8 HIGH Windows NTFS Remote Code Execution Vulnerability
CVE-2026-20956 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability
CVE-2026-20877 7.8 HIGH Windows Management Services Elevation of Privilege Vulnerability
CVE-2026-20951 7.8 HIGH Microsoft SharePoint Server Remote Code Execution Vulnerability
CVE-2026-20946 7.8 HIGH Microsoft Excel Remote Code Execution Vulnerability

Showing top 20 of 112 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft SQL Server 2022 (GDR)
Same vendor: Microsoft
Same weakness: CWE-306

V. Comments for CVE-2026-20803

No comments yet

Leave a comment