Nov 2026: Microsoft SQL Server Remote Code Execution Vulnerability
CVE-2026-67646 Published on November 10, 2026

Microsoft SQL Server Remote Code Execution Vulnerability
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
NO
Technical Impact:
TOTAL

Weakness Type

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().


Products Associated with CVE-2026-67646

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Affected Versions

Microsoft SQL Server 2025 CU10: Microsoft SQL Server 2025 for x64-based Systems (GDR):