Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come ...
On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow ...
Morning Overview on MSN
Microsoft Exchange servers are under active attack through CVE-2026-42897 — a spoofing flaw triggered by opening a single crafted email in Outlook Web Access
A single email, opened in a browser, is all it takes. Microsoft Exchange servers running Outlook Web Access (OWA) are being actively exploited through a spoofing vulnerability tracked as ...
Microsoft warns of a new zero-day vulnerability that leaves Exchange open to hackers.
Microsoft's May Patch Tuesday looked quiet. Since then, there's been an unpatched Exchange CVE, three Defender flaws, and a ...
Microsoft Exchange users are urged to mitigate a zero-day vulnerability that CISA has confirmed is under active exploitation.
Microsoft is working to patch CVE-2026-42897, an Exchange Server zero-day vulnerability that has been exploited in attacks.
The zero-day vulnerability affects on-premises installations for all versions of Exchange Server 2016, 2019 and Subscription ...
Microsoft is investigating an ongoing Exchange Online issue that mistakenly flags legitimate emails as phishing and quarantines them. The incident began on February 5 and continues to affect Exchange ...
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