Qilin Ransomware Affiliates Exploit Palo Alto Firewall Bypass to Skip Straight Past Perimeter Defenses
A critical PAN-OS authentication bypass, CVE-2026-0257, is being actively exploited by Qilin ransomware affiliates to gain direct VPN access to corporate networks. Arctic Wolf Labs traced multiple June 2026 intrusions to the flaw, finding attackers dump credentials, wipe logs, and stage ransomware in an overlooked Windows directory before encrypting victim systems.
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