Microsoft Defender vulnerabilities are being exploited in the wild (opens in new tab)

Covers 2 stories including Critical SharePoint Zero-Day (CVE-2025-53770) Under Active ExploitationCovered by 3 sources including DEV Community, Malware Analysis, News and Indicators

CISA added seven known exploited vulnerabilities to its KEV catalog, including two Microsoft Defender flaws.

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Covered in 4 articles

DEV Community·

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

Discussed on DEV

Malware Analysis, News and Indicators·

Microsoft Defender vulnerabilities are being exploited in the wild

kite.kagi.com·

Microsoft patches two exploited Defender zero-day flaws