7.0
High
CVE-2026-83999 Improper link resolution before file access ('link following') in Windows Resilient File System (ReFS) Deduplication…
Description
Improper link resolution before file access ('link following') in Windows Resilient File System (ReFS) Deduplication Service allows an authorized attacker to elevate privileges locally.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 11 Version 24H2 10.0 | 10.0.26100.0 → < 10.0.26100.9445 | 10.0.26100.9445 |
| Windows 11 Version 25H2 10.0 | 10.0.26200.0 → < 10.0.26200.9445 | 10.0.26200.9445 |
| Windows 11 version 26H1 10.0 | 10.0.28000.0 → < 10.0.28000.2954 | 10.0.28000.2954 |
| Windows Server 2025 10.0 | 10.0.26100.0 → < 10.0.26100.33438 | 10.0.26100.33438 |
| Windows Server 2025 (Server Core installation) 10.0 | 10.0.26100.0 → < 10.0.26100.33438 | 10.0.26100.33438 |
Other CVEs of Windows 11 Version 24H2
The 3573 CVEs of Windows 11 Version 24H2 →
CVE-2026-108136
Use after free in Microsoft Windows Search Component allows an authorized attacker to elevate privileges locally
7.8
High
CVE-2026-108135
Improper link resolution before file access ('link following') in Windows Backup Engine allows an authorized attacker to…
7.0
High
CVE-2026-108134
Use after free in Windows Autopilot allows an authorized attacker to elevate privileges locally
7.0
High
CVE-2026-108463
Improper resolution of path equivalence in Windows SmartScreen allows an unauthorized attacker to bypass a security…
8.8
High