https://invaders.ie/resources/blog/threat-hunting-and-intel/firestarter-leaves-patched-cisco-firewalls-at-continued-risk Invaders Security en 2026-04-26T08:05:02.570Z Firestarter leaves patched Cisco firewalls at continued risk Firestarter Cisco firewall persistence, Cisco Firepower Firestarter malware, ArcaneDoor UAT-4356 persistence, Cisco ASA FTD post patch compromise, CISA Firestarter backdoor guidance https://invaders.ie/resources/blog/vulnerability/pack2theroot-packagekit-local-root-risk Invaders Security en 2026-04-25T08:05:28.044Z Pack2TheRoot flaw puts Linux systems with PackageKit on a local root path Pack2TheRoot CVE-2026-41651, PackageKit local root exploit, Linux privilege escalation PackageKit, CVE-2026-41651 remediation, PackageKit 1.3.5 patch