New Ubuntu Flaw Enables Local Attackers to Gain Root Access

Feed of Infosecurity Magazine headlines (Mar 9–18, 2026) covering multiple high-impact vulnerabilities, active malware campaigns, and trends. Notable technical incidents: CVE-2026-3888 — an Ubuntu snap timing-based local privilege escalation allowing local users to gain root; CrackArmor AppArmor flaws enabling local root, container escape and DoS; a critical zero-click n8n vulnerability allowing full server compromise; exploited Cisco SD‑WAN flaws prompting a CISA emergency directive; an AWS Bedrock AgentCore DNS-based exfiltration risk for AI sandboxes. Active threats and takedowns include: (