Use After Free in Microsoft SQL Server 2017 (Cu 31)

CVE-2026-67385

Use after free in SQL Server allows an authorized attacker to execute code over a network.

Vulnerability class: Use-After-Free

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-67385?
CVE-2026-67385 is a high-severity vulnerability in Microsoft SQL Server 2017 (Cu 31), classified under Use After Free. CVSS score: 8.8/10. Published 2026-09-08.
How severe is CVE-2026-67385?
High severity. CVSS v3 base score is 8.8 out of 10.