Link following in Microsoft Windows - CVE-2026-69771
Published: September 8, 2026
Vulnerability identifier: #VU147940
CSH Severity: Low
CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-69771
CWE-ID: CWE-59
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to bypass access restrictions and access protected virtual hard disks in an attacker-controlled container.
The vulnerability exists due to improper link resolution before file access in Windows Container Manager Service when mapping virtual hard disks into containers. A local user can swap virtual hard disks through repeated exploitation attempts to bypass access restrictions and access protected virtual hard disks in an attacker-controlled container.
Affected software
Microsoft Windows
How to mitigate CVE-2026-69771
Install security update from vendor's website.
Microsoft Windows - addressed in versions 11 23H2 10.0.22631.7582, 11 24H2 10.0.26100.9445, 11 25H2 10.0.26200.9445, 11 26H1 10.0.28000.2954