Microsoft has confirmed an emergency security update as CISA warns that two new Defender zero-days are being exploited by attackers.
Threat actors are using three publicly available proof-of-concept exploits to attack Microsoft Defender and turn the security platform's primary cleanup and protection functions against organizations ...
Update May 25, 04:19 EDT: CVE-2026-41091 is a Microsoft Defender local privilege escalation (LPE) flaw known as RedSun, and CVE-2026-45498 is known as UnDefend, a security flaw that can be exploited ...
Morning Overview on MSN
Microsoft is racing patches for two Defender zero-days attackers used to escalate privileges, the irony being the flaws sit inside Windows’ own antivirus
Two zero-day flaws in Microsoft Defender, the antivirus engine built into every Windows installation, are already being ...
New benchmark claims Microsoft Defender catches nearly all malicious email on its own, with integrated third-party tools ...
Build 2026: Microsoft's MDASH exits preview with 100+ specialized threat-hunting AI agents ...
Microsoft releases new Windows Defender update packages very frequently to protect against various newly discovered malware. Once a while every three months or so, the company also pushes out these ...
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