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#2 SecurityWeek general June 01, 2026 at 10:00 UTC

Recent Palo Alto Networks Vulnerability Exploited for Weeks

By Ionut Arghire

AI Summary

CVE-2026-0257, an authentication bypass in Palo Alto Networks PAN-OS GlobalProtect VPN, began being exploited just four days after public disclosure and has now been active for weeks across two distinct attack waves starting in mid-May. The rapid weaponization of this flaw underscores the shrinking window between patch release and active exploitation for network perimeter devices. Organizations running vulnerable PAN-OS versions should treat this as an emergency patch priority.

Relevance score: 90.0/100

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