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#5 Ars Technica Security general July 15, 2026 at 19:59 UTC

Windows 0-day drops the same day Microsoft releases record number of patches

By Dan Goodin

AI Summary

A Windows zero-day dubbed 'LegacyHive' (HiveLegacy) was publicly dropped on the same day Microsoft released its record-setting Patch Tuesday, July 2026. The researcher described it as a 'powerful primitive' with potential for further exploitation beyond its disclosed capability, and released a stripped PoC to limit immediate weaponization.

Read full article → https://arstechnica.com/security/2026/07/windows-0…

Relevance score: 85.0/100

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