Microsoft has warned customers to mitigate a high-severity vulnerability in Exchange Server hybrid deployments that could ...

"In an Exchange hybrid deployment, an attacker who first gains administrative access to an on-premises Exchange server could ...

The security problem affects organizations with a hybrid Exchange environment, running applications in both on-premises ...

If an attacker gets admin control over the on-premises Exchange server, they can forge authentication tokens or make API ...

A vulnerability in Exchange hybrid deployments could allow attackers to escalate privileges and gain administrative access to ...

CISA has issued an emergency directive to address a security risk that could affect hybrid Microsoft Exchange users and ...

CISA and Microsoft have issued advisories for CVE-2025-53786, a high-severity flaw allowing privilege escalation in cloud environments.

Administrators with hybrid Exchange Server environments are urged by Microsoft and the US Cybersecurity and Infrastructure ...

Parts of the federal enterprise are likely susceptible to the flaw that allows hackers to hijack on-premises versions of ...

No reported in-the-wild exploits…yet Microsoft and the feds late Wednesday sounded the alarm on another high-severity bug in ...

CISA is giving agencies until 9 a.m. Monday to address a vulnerability that, left unaddressed, could allow hackers to achieve ...