Palo Alto Networks has released patches for a high-severity denial-of-service vulnerability (CVE-2026-0227) affecting its PAN-OS firewalls, particularly those using the GlobalProtect gateway. If left unpatched, attackers could trigger maintenance mode, potentially disrupting network availability. Most Prisma Access customers are already patched, but some PAN-OS NGFW users will need to apply the fix manually.

WatchGuard has identified a serious remote code execution vulnerability in Firebox firewalls, affecting certain Fireware OS versions. Attackers can exploit this flaw without user interaction, particularly if the firewalls are configured for IKEv2 VPN. The company urges immediate patching and offers workarounds for those unable to update.

A critical vulnerability, identified as CVE-2025-20265, has been discovered in Cisco's Secure Firewall Management Center, which allows for remote code execution with a CVSS score of 10. Organizations using this software are urged to apply the necessary patches immediately to mitigate potential security threats.