Vulnerability Intelligence Report
SQL Server Elevation of Privilege Vulnerability
CVE-2026-96956
Stack-based buffer overflow in SQL Server allows an authorized attacker to elevate privileges over a network.
No Active Exploit Signals
CVSS Base Score
8.0
HIGH
Exploitability:1.4
Impact Score:6.1
EPSS Probability:0.42%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-121 ↗CWE-121: Stack-based Buffer Overflow
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft SQL Server 2017 (GDR) | 14.0.0 < 14.0.2140.2 (affected) |
| Microsoft | Microsoft SQL Server 2017 for x64-based Systems (CU31) | 14.0.3006.16 < 14.0.3560.2 (affected) |
| Microsoft | Microsoft SQL Server 2019 (GDR) | 15.0.0 < 15.0.2200.2 (affected) |
| Microsoft | Microsoft SQL Server 2019 for x64-based Systems (CU32) | 15.0.4003.23 < 15.0.4500.2 (affected) |
| Microsoft | Microsoft SQL Server 2022 (GDR) | 16.0.0 < 16.0.1210.3 (affected) |
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU27) | 16.0.4003.1 < 16.0.4305.5 (affected) |
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (CU9) | 17.0.4006.2 < 17.0.5015.4 (affected) |
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) | 17.0.1050.2 < 17.0.1145.4 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.423%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-09-23T20:35:19 |
| Published | 2026-10-13T20:35:45 |
| Patch Date | 2026-10-13 |
| Last Updated | 2026-10-14T17:47:45 |
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