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High 7.0

Windows Fast FAT Driverに権限昇格の脆弱性、ローカルで管理者権限を取得されるおそれ

CVE-2026-113751 First seen on SecPulse

Summary

Windows Fast FAT Driverの競合状態の脆弱性により、ローカルの攻撃者が権限を昇格させられるおそれがあります。Windows 10 Version 1809・21H2・22H2、Windows 11 Version 23H2・24H2・25Hが影響を受け、各版の修正版が公開されています。Windows Updateなどで修正版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 Fast FAT Driverの競合状態の脆弱性により、ローカルの攻撃者が権限を昇格させられるおそれがあります。Windows 10 Version 1809・21H2・22H2、Windows 11 Version 23H2・24H2・25Hが影響を受け、各版の修正版が公開されています。Windows Updateなどで修正版を適用してください。

Affected packages

PackageAffected → Fixed
MicrosoftWindows 10 Version 1809
≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487
MicrosoftWindows 10 Version 21H2
≥ 10.0.19044.0, < 10.0.19044.7846→ 10.0.19044.7846
MicrosoftWindows 10 Version 22H2
≥ 10.0.19045.0, < 10.0.19045.7846→ 10.0.19045.7846
MicrosoftWindows 11 Version 23H2
≥ 10.0.22631.0, < 10.0.22631.7711→ 10.0.22631.7711
MicrosoftWindows 11 Version 24H2
≥ 10.0.26100.0, < 10.0.26100.9974→ 10.0.26100.9974
MicrosoftWindows 11 Version 25H2
≥ 10.0.26200.0, < 10.0.26200.9974→ 10.0.26200.9974
MicrosoftWindows 11 version 26H1
≥ 10.0.28000.0, < 10.0.28000.3501→ 10.0.28000.3501
MicrosoftWindows 11 Version 26H2
≥ 10.0.26300.0, < 10.0.26300.9974→ 10.0.26300.9974
MicrosoftWindows Server 2019
≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487
MicrosoftWindows Server 2019 (Server Core installation)
≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487
MicrosoftWindows Server 2022
≥ 10.0.20348.0, < 10.0.20348.5870→ 10.0.20348.5870
MicrosoftWindows Server 2025
≥ 10.0.26100.0, < 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
Original description The description as published by the source.

Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Fast FAT Driver allows an authorized attacker to elevate privileges locally.

Source: Microsoft Security Response Center Blog NVD GitHub Advisory

References

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