Buffer overflow in Microsoft SQL Server 2017 (Cu 31)

CVE-2026-68787

Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code locally.

Vulnerability class: Buffer Overflow

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/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-2026-68787?
CVE-2026-68787 is a high-severity vulnerability in Microsoft SQL Server 2017 (Cu 31), classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2026-09-08.
How severe is CVE-2026-68787?
High severity. CVSS v3 base score is 7.8 out of 10.