Critical Palo Alto VPN bug now exploited by Qilin ransomware gang
The Qilin ransomware gang is exploiting a critical PAN-OS GlobalProtect authentication bypass flaw to breach victims’ networks, according to cybersecurity company Arctic Wolf. Palo Alto Networks addressed the vulnerability (CVE-2026-0257) on May 13 and warned that attackers had begun abusing it to breach corporate networks after Rapid7 reported observing it being exploited against numerous customers […]
