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H1 2026 Malware Vulnerability Trends
Recorded Future's H1 2026 report finds 215 actively exploited CVEs, RAT dominance, NFC payment fraud, and AI-augmented but not autonomous tradecraft.
Recorded Future's Insikt Group identified 215 actively exploited CVEs in H1 2026, up 34% from 161 in H1 2025, with the most impactful flaws combining network reachability, no authentication, and code execution. AsyncRAT was the top malware family, with AsyncRAT, Cobalt Strike, XWorm, Stealc, and REMCOS remaining top-ten staples; Android NFC malware like NFCShare and NGate enabled payment card theft and ATM cash-outs. AI-enabled attacks remained additive to established tradecraft, concentrated in Levels 1-3 of Recorded Future's AIM3 maturity model, with AI-assisted vulnerability research (e.g., Claude Mythos fixing 271 Firefox bugs in Firefox 150) inflating NVD disclosure volumes 43% above the prior six-month average. The report urges defenders to prioritize remotely exploitable RCE flaws, behavioral detection, developer credential security, and third-party oversight.
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ThreatsDay: Self-Rewriting Agents, 800+ Flaws Patched, Insider SIM Swaps and 22 More New Stories
Unit 42 exposed CL-CRI-1171, a pay-per-install operation spreading OfferLoader and Insomnia RAT via YouTube and SEO poisoning to corporate and government targets.
The ThreatsDay bulletin leads with Unit 42's disclosure of CL-CRI-1171, a pay-per-install marketplace using YouTube channels and SEO-poisoning funnels to push trojanized software and the OfferLoader loader, which delivered Docro Hijacker, ARKTunnel and the cross-platform Insomnia RAT between July 2025 and April 2026. Oasis Security reported that 230 of 243 unauthenticated LocalAI instances were exploitable, with root command execution confirmed on 23 servers, theft of 127 AWS credential records, and exfiltration from a Thai military workstation. The roundup also covers Irregular's research on agentic self-modification, an AEPD-notified breach executed with an AI agent, CISA's warning that ransomware gangs exploit VMware vCenter CVE-2026-59310, and Oracle's September 2026 CPU fixing over 800 flaws.
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