Status: UPDATED | Advisory ID: CVE-2026-78442
| CVE | CVE-2026-78442 |
| CVSS Score / Version | 8.8 (High) / CVSS v3.1 |
| Updated | 2026-09-23 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Microsoft sql_server_2019, Microsoft Microsoft SQL Server 2019 (CU 32), Microsoft Microsoft SQL Server 2019 (GDR), Microsoft Microsoft SQL Server 2017 (CU 31), and Microsoft Microsoft SQL Server 2017 (GDR) |
| Classified as | CWE-122 (Heap-based Buffer Overflow) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Microsoft | sql_server_2019 | ||
| Microsoft | Microsoft SQL Server 2019 (CU 32) | ||
| Microsoft | Microsoft SQL Server 2019 (GDR) | ||
| Microsoft | Microsoft SQL Server 2017 (CU 31) | ||
| Microsoft | Microsoft SQL Server 2017 (GDR) |
| Subsystems | General OT |
| Sectors | Multiple |
Heap-based buffer overflow in Windows OLE DB allows an unauthorized attacker to execute code over a network.
Monitor Microsoft's web page for any future patch releases. See vendor advisory link below.