CVE-2026-77488 MEDIUM

CVE-2026-77488: Microsoft SQL Server Information Disclosure Vulnerability

Vendor Microsoft
Product Microsoft SQL Server 2017 (CU 31)
Weakness CWE-191
Published September 8, 2026
Last update September 29, 2026
View on NVD All CVEs

CVSS base score

5.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

What the vulnerability does

01Description

Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.

Key dates

02Disclosure timeline

September 8, 2026 CVE published
September 29, 2026 Record updated