Windows Error Reporting の脆弱性により権限を昇格される
Summary
Windows Error Reporting（WER）でファイルを処理・実行する際の不備により、攻撃者が権限を昇格できる脆弱性です。攻撃者は細工したアプリケーションを実行することで悪用できるとされ、CVSS v3のスコアは7.8です。Windows 10（1607・1809・21H2・22H2）とWindows 11（23H2・24H2）が対象で、各版の修正版が公開されています。該当する版のセキュリティ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 Error Reporting（WER）でファイルを処理・実行する際の不備により、攻撃者が権限を昇格できる脆弱性です。攻撃者は細工したアプリケーションを実行することで悪用できるとされ、CVSS v3のスコアは7.8です。Windows 10（1607・1809・21H2・22H2）とWindows 11（23H2・24H2）が対象で、各版の修正版が公開されています。該当する版のセキュリティ更新プログラムを適用してください。
Affected packages
| Package | Affected → Fixed | |
|---|---|---|
| MicrosoftWindows 10 Version 1607 |
≥ 10.0.14393.0, < 10.0.14393.9688→ 10.0.14393.9688 |
10.0.14393.9688 |
| MicrosoftWindows 10 Version 1809 |
≥ 10.0.17763.0, < 10.0.17763.9487→ 10.0.17763.9487 |
10.0.17763.9487 |
| MicrosoftWindows 10 Version 21H2 |
≥ 10.0.19044.0, < 10.0.19044.7846→ 10.0.19044.7846 |
10.0.19044.7846 |
| MicrosoftWindows 10 Version 22H2 |
≥ 10.0.19045.0, < 10.0.19045.7846→ 10.0.19045.7846 |
10.0.19045.7846 |
| 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 2016 |
≥ 10.0.14393.0, < 10.0.14393.9688→ 10.0.14393.9688 |
10.0.14393.9688 |
| MicrosoftWindows Server 2016 (Server Core installation) |
≥ 10.0.14393.0, < 10.0.14393.9688→ 10.0.14393.9688 |
10.0.14393.9688 |
| MicrosoftWindows Server 2019 |
≥ 10.0.17763.0, < 10.0.17763.9487→ 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 |
10.0.17763.9487 |
| 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.
An elevation of privilege vulnerability exists in Windows Error Reporting (WER) when WER handles and executes files. The vulnerability could allow elevation of privilege if an attacker can successfully exploit it.
An attacker who successfully exploited the vulnerability could gain greater access to sensitive information and system functionality. To exploit the vulnerability, an attacker could run a specially crafted application.
The security update addresses the vulnerability by correcting the way that WER handles and executes files.
Source: Microsoft Security Response Center Blog NVD GitHub Advisory
References
- web msrc.microsoft.com
- web nvd.nist.gov
- web github.com