CVE-2026-40370
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Published May 12, 2026 · corrected/updated Jun 18, 2026 · microsoft sql server 2016 · evidence confidence medium
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Grounded briefings
Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.
Executive
CVE-2026-40370 is a high public vulnerability record for microsoft sql server 2016. It is not currently listed in the CISA Known Exploited catalog. Check the linked vendor or CERT advisories for patch status. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.
System administrator
Identify whether microsoft sql server 2016 is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: microsoft/sql server 2016; microsoft/sql server 2017; microsoft/sql server 2019; microsoft/sql server 2022. Check the linked vendor or CERT advisories for patch status. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.
Security analyst
Signals on file: CVSS 8.8. It is not currently listed in the CISA Known Exploited catalog. Weakness classes: CWE-610, CWE-73. Sources contributing to this record: cve_org, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.
Exploitation and remediation
Exploitation evidence
Not listed as known exploited in CISA KEV. Not in the CISA KEV catalog.
Patch and remediation
No required-action text is stored yet. Use the vendor or CERT links in Sources for patch availability.
Safe detection guidance
Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 12, 2026 · NIST NVD
Detected
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Jun 18, 2026 · NIST NVD
Updated
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
Affected
- cpe microsoft/sql server 2016version unspecified
- cpe microsoft/sql server 2017version unspecified
- cpe microsoft/sql server 2019version unspecified
- cpe microsoft/sql server 2022version unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-40370
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-40370
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
nvd.nist.gov