CVE-2026-78442: Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.

PriorityP356high8.8CVSS 3.1

AVNACLPRNUIRSUCHIHAH

EPSS

0.56%

45.2th percentile

Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.

Affected

4 ranges

Vendor	Product	Version range	Fixed in
microsoft	microsoft_sql_server_2017	>= 14.0.0 < 14.0.3550.4	14.0.3550.4
microsoft	microsoft_sql_server_2017	>= 14.0.0 < 14.0.2130.4	14.0.2130.4
microsoft	microsoft_sql_server_2019	>= 15.0.0 < 15.0.2190.7	15.0.2190.7
microsoft	microsoft_sql_server_2019	>= 15.0.0.0 < 15.0.4490.9	15.0.4490.9

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