Palo Alto Networks Issues Alert for Actively Exploited Zero-Day Vulnerability (CVE-2026-0300)

Palo Alto Networks has issued an alert regarding a zero-day vulnerability (CVE-2026-0300) in its PAN-OS software, which is actively being exploited by cybercriminals. The flaw is exploitable without authentication, increasing its severity. No specific dates for discovery or exploitation were provided, but the vulnerability is confirmed to be under active attack. The affected product is PAN-OS, though exact versions were not disclosed in the notice. The impact involves potential unauthorized access or control due to the unauthenticated exploitability of the flaw.