CVE-2026-94511
HIGHCVSS 8.8/10
Last modified
CVE-2026-94511 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network..
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft SQL Server 2017 (GDR) | >= 14.0.0, < 14.0.2150.2 |
| Microsoft | Microsoft SQL Server 2017 for x64-based Systems (CU31) | >= 14.0.3006.16, < 14.0.3570.2 |
| Microsoft | Microsoft SQL Server 2019 (GDR) | >= 15.0.0, < 15.0.2210.4 |
| Microsoft | Microsoft SQL Server 2019 for x64-based Systems (CU32) | >= 15.0.4003.23, < 15.0.4510.2 |
| Microsoft | Microsoft SQL Server 2022 (GDR) | >= 16.0.0, < 16.0.1220.3 |
| Microsoft | Microsoft SQL Server 2022 for x64-based Systems (CU27) | >= 16.0.4003.1, < 16.0.4315.2 |
| Microsoft | Microsoft SQL Server 2025 CU10 | >= 17.0.4006.0, < 17.0.5045.3 |
| Microsoft | Microsoft SQL Server 2025 for x64-based Systems (GDR) | >= 17.0.1050.2, < 17.0.1155.3 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-94511?
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
How severe is CVE-2026-94511?
CVE-2026-94511 has a CVSS score of 8.8/10 (HIGH severity).
How do I fix CVE-2026-94511?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-94504Ninja Forms 3.15.3 stores an anonymous non-RTE textarea valu…7.2
- CVE-2026-94505The Nelio Content – Editorial Calendar & Social Media Auto-P…8.1
- CVE-2026-94506Out-of-bounds read in Microsoft Office Access allows an unau…6.5
- CVE-2026-94507Heap-based buffer overflow in Windows DirectX allows an auth…7.8
- CVE-2026-9451A weakness has been identified in code-projects Employee Man…6.3
- CVE-2026-94510Authorization bypass through user-controlled key in Microsof…9.9
- CVE-2026-94512Heap-based buffer overflow in SQL Server allows an authorize…8.8
- CVE-2026-94513Heap-based buffer overflow in SQL Server allows an authorize…8
- CVE-2026-94514Concurrent execution using shared resource with improper syn…7
- CVE-2026-94515Heap-based buffer overflow in Windows Advanced Rasterization…7.8
- CVE-2026-94517Use of uninitialized resource in Kernel Transaction Manager …5.5
- CVE-2026-94519Use after free in Windows Graphics Kernel allows an authoriz…7
Are you affected by CVE-2026-94511?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST