Thousands of Microsoft Exchange servers remain unpatched against major threat - here's what to do to stay safe

Thousands of Microsoft Exchange servers remain unpatched against major threat - here's what to do to stay safe

Improper authentication bug found in Microsoft Exchange hybrid environments that could grant threat actors lateral movement across the network.

CISA, Microsoft Update Guidance On Exchange Server Vulnerability - Cybernoz - Cybersecurity News

The Cybersecurity and Infrastructure Security Agency (CISA) and Microsoft on Tuesday updated their mitigation guidance for a high-severity flaw in Exchange Server. The flaw, tracked as CVE-2025-53786, could allow an attacker with administrative privileges for on-premises versions of Exchange to escalate privileges by exploiting vulnerable hybrid joined configurations, Microsoft and CISA said last week.  In an update on Tuesday, CISA said it stil…

CISA, Microsoft update guidance on Exchange Server vulnerability | #hacking | #cybersecurity | #infosec | #comptia | #pentest | #ransomware - National Cyber Security Consulting

The Cybersecurity and Infrastructure Security Agency (CISA) and Microsoft on Tuesday updated their mitigation guidance for a high-severity flaw in Exchange Server. The flaw, tracked as CVE-2025-53786, could allow an attacker with administrative privileges for on-premises versions of Exchange to escalate privileges by exploiting vulnerable hybrid joined configurations, Microsoft and CISA said last week.  In […] Thank you for subscribing to our RS…

Over 29,000 Unpatched Microsoft Exchange Servers Leaving Networks at Risk

A critical security vulnerability (CVE-2025-53786) in Microsoft Exchange servers has left thousands of servers exposed to a major security risk.