Microsoft warns of Exchange zero-day flaw exploited in attacks | HappeningNow.news
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Microsoft warns of Exchange zero-day flaw exploited in attacks

Source Summary Published May 15, 2026 Brief Under 1 min brief
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Summary

On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow threat actors to execute arbitrary code via cross-site scripting (XSS) while targeting Outlook on the web users.

Read original at BleepingComputer

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