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CVE-2026-77486— Microsoft SQL Server Remote Code Execution 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.

Microsoft SQL Server是美国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 2017 (CU 31) 14.0.0版本至14.0.3550.4之前版本、Microsoft SQL Server 2017 (GDR) 14.0.0版本至14.0.2130.4之前版本、Microsoft SQL Server 2019 (CU 32) 15.0.0.0版本至15.0.4490.9之前版本和Micros

CVSS 8.8 · High EPSS 0.55% · P45

Affected Version Matrix 4

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
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I. Basic Information for CVE-2026-77486

Vulnerability Information
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Vulnerability Title
Microsoft SQL Server Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Integer overflow or wraparound in SQL Server allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
整数溢出或超界折返
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft SQL Server 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft SQL Server是美国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 2017 (CU 31) 14.0.0版本至14.0.3550.4之前版本、Microsoft SQL Server 2017 (GDR) 14.0.0版本至14.0.2130.4之前版本、Microsoft SQL Server 2019 (CU 32) 15.0.0.0版本至15.0.4490.9之前版本和Micros
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 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 -

II. Public POCs for CVE-2026-77486

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III. Intelligence Information for CVE-2026-77486

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Vendor Advisories for CVE-2026-77486 (1)

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

CVE-2026-83941 9.9 CRITICAL Entra ID Elevation of Privilege Vulnerability
CVE-2026-69819 9.8 CRITICAL RPC Runtime Library Remote Code Execution Vulnerability
CVE-2026-69496 9.8 CRITICAL Windows Compressed Folder Remote Code Execution Vulnerability
CVE-2026-72979 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-78445 9.8 CRITICAL Windows Services for NFS ONCRPC XDR Driver Remote Code Execution Vulnerability
CVE-2026-69431 9.8 CRITICAL Telnet Client Remote Code Execution Vulnerability
CVE-2026-69491 9.8 CRITICAL Microsoft DirectMusic Remote Code Execution Vulnerability
CVE-2026-69768 9.8 CRITICAL Windows RNDIS Remote Code Execution Vulnerability
CVE-2026-68839 9.8 CRITICAL Windows USB Mass Storage Class Driver Remote Code Execution Vulnerability
CVE-2026-69590 9.8 CRITICAL Windows Routing and Remote Access Service (RRAS) Remote Code Execution Vulnerability
CVE-2026-67643 9.8 CRITICAL Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-73009 9.8 CRITICAL Windows Secure Socket Tunneling Protocol (SSTP) Remote Code Execution Vulnerability
CVE-2026-69586 9.8 CRITICAL Microsoft Windows PDF Remote Code Execution Vulnerability
CVE-2026-78510 9.8 CRITICAL Microsoft Word Remote Code Execution Vulnerability
CVE-2026-67631 9.8 CRITICAL Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-69525 9.8 CRITICAL Remote Desktop Services Remote Code Execution Vulnerability
CVE-2026-69715 9.8 CRITICAL Windows Direct Show Remote Code Execution Vulnerability
CVE-2026-69463 9.8 CRITICAL Windows NTFS Remote Code Execution Vulnerability
CVE-2026-70296 9.8 CRITICAL Windows Imaging Component Remote Code Execution Vulnerability
CVE-2026-73025 9.8 CRITICAL Windows iSCSI Security Feature Bypass 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-190

V. Comments for CVE-2026-77486

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