Windows Servicing Stack Updateの脆弱性で権限が昇格される
Summary
Windows Servicing Stack Updateに、認証済みの攻撃者が局所的に権限を昇格できる脆弱性が見つかりました。Windows 11 24H2・25H2・26H2とWindows Server 2025(Server Core含む)が対象で、修正版はWindows 11 24H2・25H2・26H2が10.0.26100.9974、10.0.26200.9974、10.0.26300.9974、Windows Server 2025が10.0.26100.33822です。公開直後で悪用の報告は見当たりませんが、更新プログラムを速やかに適用してください。
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 Servicing Stack Updateに、認証済みの攻撃者が局所的に権限を昇格できる脆弱性が見つかりました。Windows 11 24H2・25H2・26H2とWindows Server 2025(Server Core含む)が対象で、修正版はWindows 11 24H2・25H2・26H2が10.0.26100.9974、10.0.26200.9974、10.0.26300.9974、Windows Server 2025が10.0.26100.33822です。公開直後で悪用の報告は見当たりませんが、更新プログラムを速やかに適用してください。
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| 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 26H2 |
≥ 10.0.26300.0, < 10.0.26300.9974→ 10.0.26300.9974 |
10.0.26300.9974 |
| 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.
Untrusted pointer dereference in Servicing Stack Updates allows an authorized attacker to elevate privileges locally.
Source: Microsoft Security Response Center Blog NVD GitHub Advisory
References
- web secure@microsoft.com
- web nvd.nist.gov
- web github.com