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CVE-2026-83945— Microsoft SQL Server Remote Code Execution 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.

SQL Server 中存在基于堆的缓冲区溢出漏洞，允许经过身份验证的攻击者通过网络执行代码。

CVSS 6.6 · Medium
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I. Basic Information for CVE-2026-83945

Vulnerability Information
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Vulnerability Title
Microsoft SQL Server Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microsoft Microsoft SQL Server 2022 (GDR) 16.0.0 ~ 16.0.1210.3 -
Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27) 16.0.4003.1 ~ 16.0.4305.5 -
Microsoft Microsoft SQL Server 2025 (CU8) - -
Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9) 17.0.4006.2 ~ 17.0.5015.4 -
Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) 17.0.1050.2 ~ 17.0.1145.4 -

II. Public POCs for CVE-2026-83945

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III. Intelligence Information for CVE-2026-83945

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Vendor Advisories for CVE-2026-83945 (1)

Same Patch Batch · Microsoft · 2026-10-13 · 1407 CVEs total

CVE-2026-96113 9.8 CRITICAL Windows Domain Name Service Remote Code Execution Vulnerability
CVE-2026-83862 9.8 CRITICAL Windows Network Load Balancing Remote Code Execution Vulnerability
CVE-2026-100219 9.8 CRITICAL Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-96909 9.8 CRITICAL Windows BitLocker Remote Code Execution Vulnerability
CVE-2026-83935 9.8 CRITICAL Microsoft XML Remote Code Execution Vulnerability
CVE-2026-83782 9.8 CRITICAL Windows Shell Remote Code Execution Vulnerability
CVE-2026-88102 9.8 CRITICAL Microsoft Failover Cluster Remote Code Execution Vulnerability
CVE-2026-83780 9.8 CRITICAL Windows CCFFilter Driver Remote Code Execution Vulnerability
CVE-2026-70024 9.8 CRITICAL Windows Internet Information Services Remote Code Execution Vulnerability
CVE-2026-96320 9.8 CRITICAL Windows DHCP Server Remote Code Execution Vulnerability
CVE-2026-70147 9.8 CRITICAL Microsoft PostScript Printer Driver Remote Code Execution Vulnerability
CVE-2026-100222 9.8 CRITICAL Network Policy Server (NPS) Remote Code Execution Vulnerability
CVE-2026-97016 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-97816 9.8 CRITICAL Microsoft OpenSSH for Windows Remote Code Execution Vulnerability
CVE-2026-97749 9.8 CRITICAL Microsoft Office Outlook Remote Code Execution Vulnerability
CVE-2026-83578 9.8 CRITICAL Microsoft PowerShell Remote Code Execution Vulnerability
CVE-2026-96864 9.8 CRITICAL Microsoft Failover Cluster Virtual Driver Remote Code Execution Vulnerability
CVE-2026-97814 9.8 CRITICAL Windows Text Shaping Remote Code Execution Vulnerability
CVE-2026-97815 9.8 CRITICAL Windows Error Reporting Remote Code Execution Vulnerability
CVE-2026-70300 9.8 CRITICAL Microsoft Office Word Remote Code Execution Vulnerability

Showing top 20 of 1407 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Microsoft SQL Server 2022 (GDR)
Same vendor: Microsoft
Same weakness: CWE-122

V. Comments for CVE-2026-83945

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