CVE-2026-21262 HIGH

CVE-2026-21262: SQL Server Elevation of Privilege Vulnerability

Vendor Microsoft
Product Microsoft SQL Server 2016 Service Pack 3 (GDR)
Weakness CWE-284
Published March 10, 2026
Last update April 14, 2026
View on NVD All CVEs

CVSS base score

8.8/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

What the vulnerability does

01Description

Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

Key dates

02Disclosure timeline

March 10, 2026 CVE published
April 14, 2026 Record updated