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By Igal Zeifman

A critical unauthenticated remote code execution vulnerability in F5’s BIG-IP Access Policy Manager allows attackers to execute arbitrary code on internet-facing appliances without any credentials or user interaction. Organizations running affected BIG-IP APM versions that have not yet patched, should treat their systems as potentially compromised.

Read more about Emerging Threat: F5 BIG-IP Access Policy Manager Remote Code Execution (CVE-2025-53521)
By Igal Zeifman

Citrix has patched two vulnerabilities in NetScaler ADC and NetScaler Gateway — a critical memory overread (CVE-2026-3055) that lets unauthenticated attackers leak session tokens from SAML IDP-configured appliances, and a high-severity race condition (CVE-2026-4368) that can expose one user’s authenticated session to another. Given the rapid exploitation history of prior NetScaler memory-read flaws, organizations running affected on-premises builds should prioritize patching immediately

Read more about Citrix NetScaler ADC and Gateway Vulnerabilities (CVE-2026-3055 & CVE-2026-4368)