#VU123767 Improper access control in Microsoft SQL Server - CVE-2026-21262
Published: March 10, 2026
Vulnerability identifier: #VU123767
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-21262
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Microsoft SQL Server
Microsoft SQL Server
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in SQL Server. A remote user can bypass implemented security restrictions and gain elevated privileges on the target system.
Remediation
Install updates from vendor's website.