CyberICT

CVE-2026-78442

Microsoft · Published September 8, 2026

CVSS v3.1

HIGH
Patch availableGet patch

Description

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

Affected Products

  • Microsoft SQL Server 2017 for x64-based Systems (GDR)
  • Microsoft SQL Server 2019 for x64-based Systems (GDR)
  • Microsoft SQL Server 2017 for x64-based Systems (CU 31)
  • Microsoft SQL Server 2019 for x64-based Systems (CU 32)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C