CVE-2026-67646
Microsoft SQL Server Remote Code Execution Vulnerability
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: microsoftAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| Microsoft SQL Server 2025 CU10 Microsoft Platforms: x64-based Systems |
≥ 17.0.4006.0; < 17.0.5045.3 (affected, custom) | CNA: microsoft |
| Microsoft SQL Server 2025 for x64-based Systems (GDR) Microsoft Platforms: x64-based Systems |
≥ 17.0.1050.2; < 17.0.1155.3 (affected, custom) | CNA: microsoft |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 8.8 high |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | CNA: microsoft |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-67646CNA: microsoft · vendor-advisory, patch
For agents and automation
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