Microsoft Outlookのセキュリティ体制について、BleepingComputer公式の報道記事（https://www.bleepingcomputer.com/news/security/new-critical-microsoft-outlook-rce-bug-is-trivial-to-exploit/）で確認できます。Existing References cover identity, the Exchange Online-based enterprise management/compliance differentiator, and Copilot-assisted daily use cases; none discuss specific security vulnerabilities, so this is new and distinct from finding 1 (product lifecycle/retirement timeline).具体的には「"An attacker who successfully exploited this vulnerability could gain high privileges, which include read, write, and delete functionality." "The MonikerLink bug is particularly dangerous because it bypasses the Office Protected View feature..." "The discovery of this vulnerability is credited to Haifei Li at Check Point Research... its severity was rated as 9.8 (Critical)." "Microsoft has patched and resolved this issue in its February 2024 Patch Tuesday release."」といった記載が確認できます。限界として、認証・準拠・体制の状況は更新されうるため、この内容は取得時点のものです。適用範囲がどこまでかは、このSourceだけでは確認できない場合があります。 This vulnerability was already patched by Microsoft in February 2024; it is a historical, resolved security incident and does not represent Outlook's entire security architecture.Current Statusとして、2026年08月26日に当該Sourceを取得し、上記の内容を確認しました。Source種別としては、これは第三者であるBleepingComputerによる報道であり、企業の自己申告とは性質が異なりますが、報道時点の取材内容に基づくものです。