CVE-2026-66816

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

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66816	Vendor Advisory Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:microsoft:sql_server_2022:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2022:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2025:::::::x64:*
	cpe:2.3:a:microsoft:sql_server_2025:::::::x64:*

History

16 Sep 2026, 11:57

Type	Values Removed	Values Added
First Time		Microsoft Microsoft sql Server 2025 Microsoft sql Server 2022
References	~~() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66816 -~~	() https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-66816 - Vendor Advisory, Patch
CPE		cpe:2.3:a:microsoft:sql_server_2025:::::::x64:* cpe:2.3:a:microsoft:sql_server_2022:::::::x64:*

Information

Published : 2026-09-08 18:18

Updated : 2026-09-16 11:57

NVD link : CVE-2026-66816

Mitre link : CVE-2026-66816

CVE.ORG link : CVE-2026-66816

JSON object : View

Products Affected

microsoft

sql_server_2025
sql_server_2022

CWE

CWE-778

Insufficient Logging

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