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OpenAI Announced $1B in Defensive Tools for Water UtilitiesAttackers Breached JetBrains Cadence via Unpatched TeamCity, Extracting AWS CredentialsCVE-2026-59346 · Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host CodeCVE-2026-32475 · Elementor Pro WordPress Plugin Vulnerability Exploited to Hack SitesBroadcom Patches Critical VMware Workstation and Fusion VM-Escape VulnerabilitiesHackers Leak Millions of Airport Passenger Records After Ransom RefusalUsing a VM to Contain an AI AgentCVE-2026-73749 · HPE Patches Critical RCE Vulnerabilities in AOS-CXCVE-2026-14894 · Over 440,000 Exploit Attempts Target Super Forms and Elementor Pro RCE FlawsCisco searched for IOS XR bugs and found so many it rolled them into an update release
cve record

CVE-2026-21858

CVSS—
Severitynone
Weakness—
ExploitedNot in CISA KEV

Description

References

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Our coverage of CVE-2026-21858

CVE-2025-3248

The Agentic AI threat cluster: Seven incidents, three actors, and what they mean for your exposure

Tenable’s Research Special Operations (RSO) team has been tracking a cluster of agentic AI threat activity since late July 2026. The Taiwan autonomous AI cyber attack confirmed what the cluster data already showed: near-autonomous offensive AI has crossed from theoretical risk to operational reality. Key Takeaways Taiwan's Ministry of Digital Affairs confirmed a near-autonomous AI cyber attack in

CVE-2026-33017high

Chinese Hacker Uses DeepSeek AI to Orchestrate Vulnerability Exploits

A Chinese threat actor has been observed using AI, specifically DeepSeek's Hermes Agent, to automate and scale their cyberattacks. The actor combined AI-driven reconnaissance and vulnerability exploitation with manual techniques, targeting internet-exposed infrastructure in Asia. While the observed campaign had limited impact, it demonstrates a growing trend of AI-augmented offensive capabilities becoming more accessible and effective.