Windows ReFSに権限昇格の脆弱性、ローカルの攻撃者に悪用のおそれ
Summary
Windows Resilient File System（ReFS）の解放後使用により、認証済みの攻撃者が権限を昇格できる脆弱性です。Windows 11 23H2・24H2・25H2・26H1・26H2とWindows Server 2022が影響を受け、各版の修正版が公開されています。更新プログラムを適用してください。
AI summary
Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.
Windows Resilient File System（ReFS）の解放後使用により、認証済みの攻撃者が権限を昇格できる脆弱性です。Windows 11 23H2・24H2・25H2・26H1・26H2とWindows Server 2022が影響を受け、各版の修正版が公開されています。更新プログラムを適用してください。
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| MicrosoftWindows 11 Version 23H2 |
≥ 10.0.22631.0, < 10.0.22631.7711→ 10.0.22631.7711 |
10.0.22631.7711 |
| MicrosoftWindows 11 Version 24H2 |
≥ 10.0.26100.0, < 10.0.26100.9974→ 10.0.26100.9974 |
10.0.26100.9974 |
| MicrosoftWindows 11 Version 25H2 |
≥ 10.0.26200.0, < 10.0.26200.9974→ 10.0.26200.9974 |
10.0.26200.9974 |
| MicrosoftWindows 11 version 26H1 |
≥ 10.0.28000.0, < 10.0.28000.3501→ 10.0.28000.3501 |
10.0.28000.3501 |
| MicrosoftWindows 11 Version 26H2 |
≥ 10.0.26300.0, < 10.0.26300.9974→ 10.0.26300.9974 |
10.0.26300.9974 |
| MicrosoftWindows Server 2022 |
≥ 10.0.20348.0, < 10.0.20348.5870→ 10.0.20348.5870 |
10.0.20348.5870 |
| MicrosoftWindows Server 2025 |
≥ 10.0.26100.0, < 10.0.26100.33822→ 10.0.26100.33822 |
10.0.26100.33822 |
| MicrosoftWindows Server 2025 (Server Core installation) |
≥ 10.0.26100.0, < 10.0.26100.33822→ 10.0.26100.33822 |
10.0.26100.33822 |
Original description The description as published by the source.
Use after free in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.
Source: Microsoft Security Response Center Blog NVD GitHub Advisory
References
- web msrc.microsoft.com
- web nvd.nist.gov
- web github.com