CVE-2026-40370: CWE-73: External Control of File Name or Path in Microsoft Microsoft SQL Server 2016 Service Pack 3 (GDR)
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability, tracked as CVE-2026-40370 and categorized under CWE-73 (External Control of File Name or Path), affects Microsoft SQL Server 2016 Service Pack 3 (GDR) version 13.0.0. It enables an authorized attacker to execute arbitrary code remotely by manipulating file names or paths. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, and no user interaction required. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely, potentially leading to full compromise of the affected SQL Server instance. The vulnerability impacts confidentiality, integrity, and availability with high severity.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40370 to remediate this vulnerability.
CVE-2026-40370: CWE-73: External Control of File Name or Path in Microsoft Microsoft SQL Server 2016 Service Pack 3 (GDR)
Description
External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, tracked as CVE-2026-40370 and categorized under CWE-73 (External Control of File Name or Path), affects Microsoft SQL Server 2016 Service Pack 3 (GDR) version 13.0.0. It enables an authorized attacker to execute arbitrary code remotely by manipulating file names or paths. The CVSS v3.1 base score is 8.8, indicating high severity with network attack vector, low attack complexity, and no user interaction required. Microsoft has released an official fix for this vulnerability as documented in their security update guide.
Potential Impact
Successful exploitation allows an authorized attacker to execute arbitrary code remotely, potentially leading to full compromise of the affected SQL Server instance. The vulnerability impacts confidentiality, integrity, and availability with high severity.
Mitigation Recommendations
An official fix is available from Microsoft. Users should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40370 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-11T23:06:15.615Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40370","vendor":"Microsoft"}]
Threat ID: 6a036550cbff5d861008c901
Added to database: 05/12/2026, 17:37:20 UTC
Last enriched: 06/19/2026, 17:37:37 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 188
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