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Bad Epoll Linux kernel flaw lets unprivileged users gain root

The Bad Epoll root escalation hitting Linux and Android, the NetNut takedown, the Avalon malware framework, and North Korean npm packages.

🚨 ACTIVE EXPLOITS & INCIDENTS

  • NetNut proxy network disrupted, 2 million infected devices cut off — BleepingComputer A coordinated takedown involving Google dismantled the NetNut residential proxy network, which leveraged millions of compromised Android devices including smart TVs and streaming boxes. This disruption cuts off a major source of abused infrastructure used for fraud, scraping, and anonymized attacks.

🔓 VULNERABILITIES & CVEs

🕵️ THREAT RESEARCH & DEEP DIVES

  • New Avalon Malware Framework Packs CrownX Ransomware Capabilities — The Hacker News Researchers uncovered "Avalon," a modular malware framework distributed via multi-stage phishing that bypasses traditional defenses. Avalon integrates credential theft, lateral movement, remote access, recovery disruption, and ransomware (CrownX), representing a sophisticated all-in-one threat chain.
  • North Korea-Linked npm Packages Mimic Rollup Polyfills to Steal Developer Secrets — The Hacker News North Korean threat actors deployed malicious npm packages ("rollup-packages-polyfill-core" and "rollup-runtime-polyfill-core") impersonating legitimate Rollup polyfill tooling. These packages enable remote access and exfiltration of developer secrets, highlighting ongoing supply chain risks in open source ecosystems.

📰 LESSER-KNOWN / UNDER-REPORTED

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