What is CVE-2026-67378?

CVE-2026-67378 is a critical-severity vulnerability in Microsoft SQL Server 2019 (Cu 32), classified under Untrusted Pointer Dereference. CVSS score: 9.0/10. Published 2026-09-08.

How severe is CVE-2026-67378?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Vulnerability in Microsoft SQL Server 2019 (Cu 32)

CVE-2026-67378

Untrusted pointer dereference in SQL Server allows an unauthorized attacker to execute code over a network.

Published 2026-09-08 · last modified 2026-09-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (52.9th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-822 — Untrusted Pointer Dereference

References

Microsoft SQL Server Remote Code Execution Vulnerability (vendor-advisory, Patch, patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-67378?: CVE-2026-67378 is a critical-severity vulnerability in Microsoft SQL Server 2019 (Cu 32), classified under Untrusted Pointer Dereference. CVSS score: 9.0/10. Published 2026-09-08.
How severe is CVE-2026-67378?: Critical severity. CVSS v3 base score is 9.0 out of 10.