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CVE-2026-77480— SQL Server Elevation of Privilege Vulnerability

Quick assessment

Affected
Microsoft Microsoft SQL Server 2017 (CU 31)
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.

SQL Server 中访问控制粒度不足，使得经过身份验证的攻击者能够通过网络提升权限。

CVSS 8.8 · High

Affected Version Matrix 8

VendorProduct Version RangeStatus
Microsoft Microsoft SQL Server 2017 (CU 31) 14.0.0< 14.0.3550.4 affected
Microsoft Microsoft SQL Server 2017 (GDR) 14.0.0< 14.0.2130.4 affected
Microsoft Microsoft SQL Server 2019 (CU 32) 15.0.0.0< 15.0.4490.9 affected
Microsoft Microsoft SQL Server 2019 (GDR) 15.0.0< 15.0.2190.7 affected
Microsoft Microsoft SQL Server 2022 (CU 26) 16.0.0.0< 16.0.4275.2 affected
Microsoft Microsoft SQL Server 2022 (GDR) 16.0.0< 16.0.1200.5 affected
Microsoft Microsoft SQL Server 2025 (CU8) 17.0.0.0< 17.0.4085.5 affected
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2< 17.0.1135.8 affected
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I. Basic Information for CVE-2026-77480

Vulnerability Information
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Vulnerability Title
SQL Server Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Insufficient granularity of access control 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:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1220
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft SQL Server 2017 (CU 31) 14.0.0 ~ 14.0.3550.4 -
Microsoft Microsoft SQL Server 2017 (GDR) 14.0.0 ~ 14.0.2130.4 -
Microsoft Microsoft SQL Server 2019 (CU 32) 15.0.0.0 ~ 15.0.4490.9 -
Microsoft Microsoft SQL Server 2019 (GDR) 15.0.0 ~ 15.0.2190.7 -
Microsoft Microsoft SQL Server 2022 (CU 26) 16.0.0.0 ~ 16.0.4275.2 -
Microsoft Microsoft SQL Server 2022 (GDR) 16.0.0 ~ 16.0.1200.5 -
Microsoft Microsoft SQL Server 2025 (CU8) 17.0.0.0 ~ 17.0.4085.5 -
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 ~ 17.0.1135.8 -

II. Public POCs for CVE-2026-77480

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III. Intelligence Information for CVE-2026-77480

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Vendor Advisories for CVE-2026-77480 (1)

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

CVE-2026-83941 9.9 CRITICAL Entra ID Elevation of Privilege Vulnerability
CVE-2026-69525 9.8 CRITICAL Remote Desktop Services Remote Code Execution Vulnerability
CVE-2026-69463 9.8 CRITICAL Windows NTFS Remote Code Execution Vulnerability
CVE-2026-73025 9.8 CRITICAL Windows iSCSI Security Feature Bypass Vulnerability
CVE-2026-73010 9.8 CRITICAL Microsoft Failover Cluster Remote Code Execution Vulnerability
CVE-2026-70296 9.8 CRITICAL Windows Imaging Component Remote Code Execution Vulnerability
CVE-2026-69819 9.8 CRITICAL RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-69715 9.8 CRITICAL Windows Direct Show Remote Code Execution Vulnerability
CVE-2026-73009 9.8 CRITICAL Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
CVE-2026-69590 9.8 CRITICAL Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-68839 9.8 CRITICAL Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability
CVE-2026-78445 9.8 CRITICAL Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
CVE-2026-69768 9.8 CRITICAL Windows RNDIS Remote Code Execution Vulnerability
CVE-2026-69491 9.8 CRITICAL Microsoft DirectMusic Remote Code Execution Vulnerability
CVE-2026-69431 9.8 CRITICAL Telnet Client Remote Code Execution Vulnerability
CVE-2026-72979 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-69824 9.8 CRITICAL Microsoft Standard XPS Remote Code Execution Vulnerability
CVE-2026-69408 9.8 CRITICAL Microsoft Windows Media Foundation Remote Code Execution Vulnerability
CVE-2026-69910 9.8 CRITICAL Windows Hyper-V Remote Code Execution Vulnerability
CVE-2026-78510 9.8 CRITICAL Microsoft Word Remote Code Execution Vulnerability

Showing top 20 of 966 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Microsoft SQL Server 2017 (CU 31)
Same vendor: Microsoft
Same weakness: CWE-1220

V. Comments for CVE-2026-77480

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