The Linux Vulnerability That Needs No Clicks to Attack — A CyberDudeBivash Security Research DeepDive Author: CyberDudeBivash · Powered by: CyberDudeBivash

Executive summary Some Linux vulnerabilities let attackers achieve remote code execution or local privilege escalation without any user interaction — so-called 0-click or no-click flaws. These are especially dangerous because they remove social-engineering as a barrier and can be wormable or remotely triggered by network-facing services (SMB, NFS-like subsystems, or poorly hardened privileged setuid helpers). This DeepDive explains the practical mechanics, real-world examples (local and remote), detection telemetry, mitigations, and an actionable checklist for defenders. Key, load-bearing references are cited inline. CrowdStrike +3 NVD +3 Qualys +3 1) Zero-click vs local escalation — short definitions Zero-click (0-click) remote vulnerability: attacker triggers code execution or compromise remotely without victim action (no click, no file open). Often affects network-facing subsystems or protocol parsers. Example: crafted SMB/ksmbd requests leading to RCE. willsroot.io ...