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A CVSS 9.8 root RCE in Cisco Nexus switches, and the advisory lists no fixed release

2026-09-04Security

CVE-2026-20212 is a service bound to an unrestricted address, leaving TCP 43210 and 43211 reachable in the default VRF on Silicon One Nexus 9000 switches. Unauthenticated code execution as root. Ten models, every NX-OS release from 10.3(1) to 10.6(3s), and the only remedies on offer are an ACL and a temporary shield.

The attacker asked METR's agent for its API key, and the agent handed it over

2026-09-03AI

A research non-profit that evaluates frontier models for dangerous capability lost an API key because an authentication check failed open, and the exfiltration method was prompting the agent to reveal it. Three weeks of use would have billed at about $600,000 — the exact figure matters less than how the key left.

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