Multiple zero-day vulnerabilities are actively being exploited across enterprise systems right now. Ransomware gangs are weaponizing a Windows flaw called BlueHammer, while attackers have compromised major companies like Nissan and Cisco through unpatched exploits in PeopleSoft and SD-WAN software.
·CISA confirms Windows BlueHammer zero-day is being actively exploited by ransomware operations
·Nissan data breach traced to PeopleSoft zero-day affecting employee records
·Cisco Catalyst SD-WAN zero-day CVE-2026-20245 exploited for root access to systems
·Anonymous researcher publicly released undisclosed zero-day exploits in Exploitarium repository
·Microsoft pursuing legal action against parties disclosing exploit information
drawn from BleepingComputer, BankInfoSecurity, Infosecurity Magazine, The Register · updated 3h ago