CVE-2026-40370

High

Published: 12 May 2026

Published

12 May 2026

Modified

13 May 2026

KEV Added

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Patch

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CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score 0.0056 42.2th percentile

Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2026-40370 is a high-severity External Control of File Name or Path (CWE-73) vulnerability. Its CVSS base score is 8.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 42.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

EU & UK References

🇪🇺 ENISA EUVD: EUVD-2026-29652

Vulnerability details

External control of file name or path in SQL Server allows an authorized attacker to execute code over a network.

CWE(s): CWE-73

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

Why these techniques?

CWE-73 path control in SQL Server directly enables remote code execution by an authenticated network attacker, mapping to exploitation of server software.

Confidence: MEDIUM · MITRE ATT&CK Enterprise v19.0