CVE-2026-70563

Improper link resolution before file access ('link following') in Windows Shell allows an unauthorized attacker to perform spoofing over a network.

Scoring

Severity

HIGH

CVSS base score

8.1

CVSS vector

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

EPSS probability

0.87%

CWE

CWE-59

Published

2026-09-08

Last modified

2026-09-09

Affected products

• Microsoft Windows 10 Version 1607
• Microsoft Windows 10 Version 1809
• Microsoft Windows 10 Version 21H2
• Microsoft Windows 10 Version 22H2
• Microsoft Windows 11 version 23H2
• Microsoft Windows 11 Version 23H2
• Microsoft Windows 11 Version 24H2
• Microsoft Windows 11 Version 25H2

Weakness type

• CWE-59

Related vulnerabilities

• CVE-2026-87766 — Bubblewrap: bubblewrap: symlink traversal via /oldroot allows writing files outside sandbox during setup
• CVE-2026-78622 — Improper Link Resolution in Okta Verify for Windows Uninstaller Data Removal
• CVE-2026-81963 — Windows Update Stack Elevation of Privilege Vulnerability
• CVE-2026-69425 — Windows NTFS Tampering Vulnerability
• CVE-2026-69289 — Windows Setup Files Cleanup Elevation of Privilege Vulnerability
• CVE-2026-83999 — Windows Resilient File System (ReFS) Deduplication Service Elevation of Privilege Vulnerability
• CVE-2026-69771 — Windows Container Manager Service Security Feature Bypass Vulnerability
• CVE-2026-69379 — Windows NTFS Elevation of Privilege Vulnerability

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