A zero-day vulnerability exists in Microsoft Exchange, which attackers are already exploiting. Admins should act quickly.

CVE-2026-42897 is exploited in on-prem Exchange; crafted emails enable spoofing, forcing urgent mitigation.

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…

In Microsofts Exchange klafft eine Zero-Day-Lücke, die Angreifer bereits missbrauchen. Admins sollten rasch handeln.

A zero-day vulnerability exists in Microsoft Exchange, which attackers are already exploiting. Admins should act quickly.

Microsoft Exchange has now joined Windows 11 as Pwn2Own zero-day hackers continue to successfully attack the tech giant’s products.

Microsoft Exchange has now joined Windows 11 as Pwn2Own zero-day hackers continue to successfully attack the tech giant’s products.

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.