New Zero-Day Vulnerability 'LegacyHive' Reported in Windows Despite Latest Updates
- Published
- Source
- ITmedia.co.jp
On July 14, 2026, a new zero-day vulnerability named 'LegacyHive' was disclosed by Nightmare-Eclipse on GitHub. This vulnerability affects Windows systems even when the latest security updates have been applied, as it allows the mounting of a different user's registry hive during user profile read/write operations.
The significance of the LegacyHive vulnerability lies in its potential to compromise user authentication credentials, leading to severe security risks, including complete system takeover. Currently, no CVE code has been assigned, and Microsoft has not provided any information regarding this issue.
As the situation develops, it is crucial to monitor any updates from Microsoft regarding patches or mitigations for the LegacyHive vulnerability. No further timeline was disclosed at the time of publication.
Original report
[ITmedia PC USER] Windowsに新しいゼロデイ脆弱性「LegacyHive」が報告される 最新アップデート適用済みでも影響あり
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