CVE-2026-20803

Microsoft SQL Server Elevation of Privilege Vulnerability

Published Jan 13, 2026 CVSS 3.1 · 7.2 High EPSS 1.2% KEV · Not listed
Description
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
CPEs cpe:2.3:a:microsoft:sql_server_2025:17.0.1000.7:*:*:*:*:*:x64:*
Type Values Removed Values Added
Description Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
Title Microsoft SQL Server Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft sql Server 2022
Microsoft sql Server 2025
Weaknesses CWE-306
CPEs cpe:2.3:a:microsoft:sql_server_2022:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:sql_server_2025:*:*:*:*:*:*:x64:*
Vendors & Products Microsoft
Microsoft sql Server 2022
Microsoft sql Server 2025
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Jul 30, 2026, 8:46 PM
Reserved
Dec 3, 2025, 5:54 AM
Status
Analyzed
Published
Jan 13, 2026, 6:16 PM
Modified
Jul 30, 2026, 9:16 PM