CVE-2026-84011

Published Oct 13, 2026

Last updated 21 days ago

Overview

Description
Incorrect authorization in Windows SMB Client allows an authorized attacker to bypass a security feature locally.
Source
secure@microsoft.com
NVD status
Analyzed
Products
windows_11_23h2, windows_11_24h2, windows_11_25h2, windows_11_26h1, windows_11_26h2, windows_server_2022, windows_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:N/I:H/A:N
Severity
MEDIUM

Weaknesses

secure@microsoft.com
CWE-863

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.