This page collects WhisperX intelligence signals tagged #CVE-2026-0300. It is designed for humans, search engines, and AI agents: each item links to a canonical source-backed record with sector, source, timestamp, credibility, and exportable structured data.
A critical unauthenticated remote code execution vulnerability in Palo Alto Networks PAN-OS has been catalogued under CVE-2026-0300, with active exploitation already confirmed in the wild. The flaw resides in the PAN-OS User-ID Authentication Portal—commonly referred to as Captive Portal—and stems from a buffer overflo...
Security researchers have identified a critical zero-day vulnerability, tracked as CVE-2026-0300, affecting Palo Alto Networks PAN-OS firewall firmware. The flaw enables unauthenticated remote code execution (RCE) by exploiting the Captive Portal component, which handles user authentication on network gateways. The vul...
Palo Alto Networks has confirmed that threat actors are actively targeting a critical vulnerability in its PAN-OS software, with exploitation attempts dating back to April 9, 2026. The flaw, tracked as CVE-2026-0300, carries a CVSS score of 9.3 out of 10, placing it among the most severe security weaknesses affecting e...