Palo Alto Networks Warns of Exploited PAN-OS RCE Zero-Day
· Cybersecurity · United States
Palo Alto Networks has released security updates for a high-severity PAN-OS remote code execution zero-day, tracked as CVE-2026-0322, that has been exploited in attacks targeting firewalls. The vulnerability allows attackers to execute code remotely on affected firewall appliances. Organizations using PAN-OS firewalls are urged to apply the updates promptly. The active exploitation of a firewall zero-day highlights the critical need for rapid patching of edge security devices.
Why it matters：Firewalls are the first line of defense, and an exploited RCE flaw in a widely deployed platform can give attackers a foothold into entire networks.
Key points
- The flaw is tracked as CVE-2026-0322 and rated high severity.
- It has been exploited in attacks targeting firewalls.
- Security updates are available and should be applied immediately.
Sources (original reporting)
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