CVE-2026-67643

No fix known EPSS <1%CVSS 9.8

Heap-based buffer overflow in SQL Server allows an unauthorized attacker to execute code over a network.

Published 2026-09-08 · CVE record · OSV

Products: Microsoft SQL Server 2022 (CU 26), Microsoft SQL Server 2022 (GDR), Microsoft SQL Server 2025 (CU8), Microsoft SQL Server 2025 for x64-based Systems (GDR)