BleepingComputer

Microsoft warns of new Defender zero-days exploited in attacks (opens in new tab)

Covers 2 stories See all stories this covers including Critical SharePoint Zero-Day (CVE-2025-53770) Under Active ExploitationCovered by 8 sources See all sources covering this story including DEV Community, TechRadarDiscussed on Hacker News

On Wednesday, Microsoft started rolling out security patches for two Defender vulnerabilities that have been exploited in zero-day attacks. [...]

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Covered in 10 articles

DEV Community·

Defender zero-days CVE-2026-41091 and 45498 — what defenders should do today (May 2026)

Discussed on DEV
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TechRadar
·

Microsoft confirms two major Defender security issues — so update now or face possible attack

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Malware Analysis, News and Indicators·

25th May – Threat Intelligence Report

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View all 10 ›

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