Out-of-bounds Read in Microsoft SQL Server 2019 (Cu 32)

CVE-2026-67636

Out-of-bounds read in SQL Server allows an authorized attacker to execute code over a network.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-67636?
CVE-2026-67636 is a high-severity vulnerability in Microsoft SQL Server 2019 (Cu 32), classified under Out-of-bounds Read. CVSS score: 8.5/10. Published 2026-09-08.
How severe is CVE-2026-67636?
High severity. CVSS v3 base score is 8.5 out of 10.