CVE-2026-21262
High
Description
Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Microsoft Sql Server
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- microsoft sql_server_201613.0.6480.4, 13.0.7075.5 or later
- microsoft sql_server_201714.0.2100.4, 14.0.3520.4 or later
- microsoft sql_server_201915.0.2160.4, 15.0.4460.4 or later
- microsoft sql_server_202216.0.1170.5, 16.0.4240.4 or later
- microsoft sql_server_202517.0.1105.2, 17.0.4020.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| microsoft sql_server_2016 | 13.0.6300.2 ≤ v < 13.0.6480.4, 13.0.7000.253 ≤ v < 13.0.7075.5 | 13.0.6480.4, 13.0.7075.5 |
| microsoft sql_server_2017 | 14.0.1000.169 ≤ v < 14.0.2100.4, 14.0.3006.16 ≤ v < 14.0.3520.4 | 14.0.2100.4, 14.0.3520.4 |
| microsoft sql_server_2019 | 15.0.2000.5 ≤ v < 15.0.2160.4, 15.0.4003.23 ≤ v < 15.0.4460.4 | 15.0.2160.4, 15.0.4460.4 |
| microsoft sql_server_2022 | 16.0.1000.6 ≤ v < 16.0.1170.5, 16.0.4003.1 ≤ v < 16.0.4240.4 | 16.0.1170.5, 16.0.4240.4 |
| microsoft sql_server_2025 | 17.0.1000.7 ≤ v < 17.0.1105.2, 17.0.4006.2 ≤ v < 17.0.4020.2 | 17.0.1105.2, 17.0.4020.2 |
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