CVE-2026-40370
8.8 · HIGHExternal control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Overview
CVE-2026-40370 is a high-severity vulnerability affecting microsoft sql_server_2016. It was published on May 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical description
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Remediation
Check the references section for vendor advisories and patches from microsoft. Update sql_server_2016 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| microsoft | sql_server_2016 | >= 13.0.6300.2, < 13.0.6490.1 | Affected |
| microsoft | sql_server_2017 | >= 14.0.1000.169, < 14.0.2110.2 | Affected |
| microsoft | sql_server_2019 | >= 15.0.2000.5, < 15.0.2170.1 | Affected |
| microsoft | sql_server_2022 | >= 16.0.1000.6, < 16.0.1180.1 | Affected |
| microsoft | sql_server_2025 | >= 17.0.1000.7, < 17.0.1115.1 | Affected |
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Frequently asked questions
What is CVE-2026-40370?
CVE-2026-40370 is a high-severity vulnerability affecting microsoft sql_server_2016. It was published on May 12, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2026-40370?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-40370?
Check the references section for vendor advisories and patches from microsoft. Update sql_server_2016 to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-40370?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-40370 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.
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