Tagged: authentication bypass

Citrix NetScaler Gateway authentication bypass attack diagram 0

Citrix NetScaler Targeted in Rapid Exploitation Campaign

Malicious actors have commenced active attacks against Citrix NetScaler infrastructure. They are exploiting the critical vulnerability designated as CVE-2026-19490. This severe flaw enables remote adversaries to circumvent authentication protocols entirely. Consequently, they gain illicit...

Nearly 22,000 internet-facing Exchange servers remain unpatched against CVE-2026-62911, an authentication bypass that can hijack every user's mailbox 0

22,000 Exchange Servers Exposed to Mailbox-Hijack Flaw

Corporate email can fall into an attacker’s hands after the compromise of a single low-privilege account. Nearly 22,000 internet-facing Microsoft Exchange servers have not received the fix for CVE-2026-62911, a flaw that allows every...

CVE-2026-0257 Qilin ransomware attack chain from PAN-OS GlobalProtect authentication bypass to domain-wide Windows encryption 0

CVE-2026-0257 Qilin Ransomware Hits GlobalProtect

A single vulnerable VPN gateway can lay open an entire corporate network. Affiliates of the Qilin extortion group are already turning a fresh PAN-OS GlobalProtect flaw to precisely that purpose. Arctic Wolf specialists have...