CVE-2026-70184 HIGH

CVE-2026-70184: Windows Backup Engine Elevation of Privilege Vulnerability

Vendor Microsoft
Product Windows 10 Version 21H2
Weakness CWE-41
Published October 13, 2026
Last update October 23, 2026
View on NVD All CVEs

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

Improper resolution of path equivalence in Windows Backup Engine allows an authorized attacker to elevate privileges locally.

Key dates

02Disclosure timeline

October 13, 2026 CVE published
October 23, 2026 Record updated