Microsoft Confirms Active 0-Day Exploit—Check Emergency Mitigation Now (opens in new tab)

Microsoft Confirms Active 0-Day Exploit—Check Emergency Mitigation Now ForbesOn-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email The Hacker NewsMicrosoft warns of Exchange zero-day flaw exploited in attacks BleepingComputerCVE-2026-42897: Microsoft confirms active exploitation of Exchange Server zero-day Security AffairsWeek in review: Cisco patches SD-WAN 0-day, unpatched Microsoft Exchange Server flaw exploited Help Net Security