Daily Threat Intelligence Brief: 03 Jun 2026
Windows Netlogon RCE CVE-2026-41089 (CVSS 9.8) under active exploitation — half-patched AD forests are not a defensible state. TeamPCP Miasma worm poisons 31+ @redhat-cloud-services npm packages (~80,000 weekly downloads); preinstall hook exfiltrates GitHub Actions secrets, npm tokens, AWS/GCP/Azure credentials and self-propagates. PHANTOMPULSE RAT (REF6598) uses Ethereum/Base/Optimism blockchain transactions as C2 resolver — traditional IOC blocking is ineffective. Citrix NetScaler CVE-2026-3055 large-scale exploitation confirmed by Fortinet. CISA adds Android CVE-2025-48595 and Linux cgroups CVE-2022-0492 to KEV. HP Poly VoIP CVE-2026-0826 Metasploit module now public. Includes 7 KQL hunting queries and 4 high-fidelity detection rules.