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CVE-2026-20803

nvd nist
Published: Jan 13, 2026Modified: Jun 17, 2026

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7.2
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.2 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.

Affected (3)

Microsoft
2 products
Sql Server 2022
Sql Server 2025
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Sql Server 2022
From 16.0.1000.6 to 16.0.1165.1
Sql Server 2022
From 16.0.4003.1 to 16.0.4230.2
Sql Server 2025
Version 17.0.1000.7

Related CWEs

CWE-306
Missing Authentication for Critical Function
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

References (1)

Source: secure@microsoft.com
Vendor Advisory

Timeline

No history available yet.