CVE-2026-77488

Published Sep 8, 2026

Last updated 7 days ago

Overview

Description
Integer underflow (wrap or wraparound) in SQL Server allows an authorized attacker to disclose information locally.
Source
secure@microsoft.com
NVD status
Analyzed
Products
sql_server_2017, sql_server_2019, sql_server_2022, sql_server_2025

Risk scores

CVSS 3.1

Type
Secondary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity
MEDIUM

Weaknesses

secure@microsoft.com
CWE-191

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.