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CVE-2026-66816 Details

Insufficient logging in SQL Server allows an authorized attacker to bypass a security feature over a network.

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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URL	Source(s)	Tag(s)
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66816	[email protected]	Vendor AdvisoryPatch

CWE-ID	CWE Name	Source
CWE-778	Insufficient Logging	[email protected]

Product	Versions
microsoft sql server 2022	< 16.0.1200.5 >= 16.0.4003.1, < 16.0.4275.2
CPE cpe:2.3:a:microsoft:sql_server_2022:::::::x64:* Remediation No remediation found in references.
microsoft sql server 2025	< 17.0.1135.8 >= 17.0.4006.2, < 17.0.4085.5
CPE cpe:2.3:a:microsoft:sql_server_2025:::::::x64:* Remediation No remediation found in references.

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