CVE-2026-20803
HIGHMicrosoft SQL Server 2022 and 2025 - Missing Authentication for Critical Function
Title source: llmDescription
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20803
Scores
CVSS v3
7.2
EPSS
0.0009
EPSS Percentile
24.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-306
Status
published
Products (5)
Microsoft/Microsoft SQL Server 2022 (GDR)
16.0.0 - 16.0.1165.1
Microsoft/Microsoft SQL Server 2022 for x64-based Systems (CU 22)
16.0.0.0 - 16.0.4230.2
Microsoft/Microsoft SQL Server 2025 for x64-based Systems (GDR)
17.0.1050.2
microsoft/sql_server_2022
16.0.1000.6 - 16.0.1165.1
microsoft/sql_server_2025
17.0.1000.7
Published
Jan 13, 2026
Tracked Since
Feb 18, 2026