CVE-2026-67643: microsoft sql_server_2022, microsoft sql_server_2025

CVSS 9.8 (critical) · published 2026-09-08

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

Affected products (NVD): microsoft sql_server_2022, microsoft sql_server_2025

Fixed in (NVD): 16.0.1200.5, 16.0.4275.2, 17.0.1135.8, 17.0.4085.5

Weakness: CWE-122

Source: NVD CVE-2026-67643

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67643

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