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Microsoft warns of Exchange zero-day flaw exploited in attacks
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.
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thehackernews.com
On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email
CVE-2026-42897 is exploited in on-prem Exchange; crafted emails enable spoofing, forcing urgent mitigation.
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bleepingcomputer.com
Microsoft warns of Exchange zero-day flaw exploited in attacks
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…