CVE-2026-78456: Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.

PriorityP263high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

0.85%

56.1th percentile

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

Affected

2 ranges

Vendor	Product	Version range	Fixed in
microsoft	microsoft_sql_server_2022	>= 16.0.0 < 16.0.1200.5	16.0.1200.5
microsoft	microsoft_sql_server_2022	>= 16.0.0.0 < 16.0.4275.2	16.0.4275.2

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