CVE-2026-88086
Medium
Description
Out-of-bounds read in SQL Server allows an unauthorized attacker to disclose information over an adjacent network.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Microsoft SQL Server 2019 (GDR)
PublishedOct 13, 2026
First seenOct 13, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Update
- Microsoft Microsoft SQL Server 2019 (GDR)15.0.2200.2 or later
- Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32)15.0.4500.2 or later
- Microsoft Microsoft SQL Server 2022 (GDR)16.0.1210.3 or later
- Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27)16.0.4305.5 or later
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9)17.0.5015.4 or later
- Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR)17.0.1145.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft Microsoft SQL Server 2019 (GDR) | 15.0.0 ≤ v < 15.0.2200.2 | 15.0.2200.2 |
| Microsoft Microsoft SQL Server 2019 for x64-based Systems (CU32) | 15.0.4003.23 ≤ v < 15.0.4500.2 | 15.0.4500.2 |
| Microsoft Microsoft SQL Server 2022 (GDR) | 16.0.0 ≤ v < 16.0.1210.3 | 16.0.1210.3 |
| Microsoft Microsoft SQL Server 2022 for x64-based Systems (CU27) | 16.0.4003.1 ≤ v < 16.0.4305.5 | 16.0.4305.5 |
| Microsoft Microsoft SQL Server 2025 for x64-based Systems (CU9) | 17.0.4006.2 ≤ v < 17.0.5015.4 | 17.0.5015.4 |
| Microsoft Microsoft SQL Server 2025 for x64-based Systems (GDR) | 17.0.1050.2 ≤ v < 17.0.1145.4 | 17.0.1145.4 |
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