CVE-2026-20803

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

Score

CVSS 3.1 7.2 High

Status

Analyzed - secure@microsoft.com

Published

2026-01-13

Last modified

2026-07-30

Weaknesses

CWE-306

Affected products

• Sql Server 2022 (Microsoft)
• Sql Server 2025 (Microsoft)

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803