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Security & Lifecycle News

Aggregated from vendor advisories, security research, and industry publications.

The Hacker News

On-Prem Microsoft Exchange Server CVE-2026-42897 Exploited via Crafted Email

Microsoft has disclosed a new security vulnerability impacting on-premise versions of Exchange Server that it said has come under active exploitation in the wild. The vulnerability, tracked as CVE-2026-42897 (CVSS score: 8.1), has been described as a spoofing bug stemming from a cross-site scripting flaw. An anonymous researcher has been credited with discovering and reporting the issue. "

CVE-2026-42897
Packet Pushers

N4N055: A Wired NAC Walkthrough

Today’s topic is Network Access Control (NAC) for a wired network. To help walk us through it all is Jennifer “JJ” Jabbusch, a network security architect, public speaker, book auth…

Cisco Security Advisories

Cisco Catalyst SD-WAN Manager Vulnerabilities

Multiple vulnerabilities in Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow a remote attacker to gain access to sensitive information, elevate privileges, or ga…

Cisco CVE-2026-20209 CVE-2026-20210 CVE-2026-20224
Schneier on Security

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m giving a virtual talk on “The Security of Trust in the Age of AI,” hosted by the Financial Women’s Associatio…

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