Critical-severity CVE-2026-42897 could lead to remote code execution, and hackers are already taking advantage.

Microsoft warns of a new zero-day vulnerability that leaves Exchange open to hackers.

The Tycoon2FA phishing kit now supports device-code phishing attacks and abuses Trustifi click-tracking URLs to hijack ...

Microsoft Exchange users are urged to mitigate a zero-day vulnerability that CISA has confirmed is under active exploitation.

Microsoft Exchange users are urged to mitigate a zero-day vulnerability that CISA has confirmed is under active exploitation.

A newly discovered zero-day vulnerability in Microsoft Exchange Server has experts declaring an emergency and urging CSOs to ...

Microsoft is working to patch CVE-2026-42897, an Exchange Server zero-day vulnerability that has been exploited in attacks.

Microsoft warned Exchange Server customers about critical OWA vulnerability CVE-2026-42897 affecting on-premises deployments.

On Thursday, Microsoft shared mitigations for a high-severity Exchange Server vulnerability exploited in attacks that allow ...

Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come ...

Researchers say the campaign uses a browser-based JavaScript VM to hide credential theft and intercept MFA at scale.

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