Claude Mythos: Prepare for your board’s cybersecurity questions about the latest AI model from Anthropic
2026-04-14T20:52:27Z•b9bedaad65be44b45d287fe4b0659e21548572b18704b7f30fee88b152e35aab
AI vulnerability discoveryAnthropic Claude MythosAxios npm supply chainCISA AA26-097ACISA KEVCVE-2021-22681CVE-2026-32201CVE-2026-35616CyberAv3ngersFortinet FortiClientEMSICS/PLC exploitationIRGC-linked threatMicrosoft Patch Tuesday April 2026Tenable Hexa AIUNC1069WAVESHAPER.V2developer credential economyexposure managementhotfixes recommendedsupply chain compromisezero-day exploited in the wild
What happened
This collection of Tenable blogs highlights multiple high‑impact threats and defenses from April 2026: Anthropic’s Claude Mythos frontier model accelerates automated vulnerability discovery (raising board‑level risk questions); Microsoft’s April Patch Tuesday fixed 163 CVEs (including two zero‑days); Fortinet FortiClientEMS (CVE-2026-35616) is a publicly exploited critical improper access control zero‑day with hotfixes and CISA KEV entry; Iranian‑linked CyberAv3ngers are actively exploiting Rockwell PLCs (notably CVE-2021-22681) across US critical infrastructure per a six‑agency advisory; and—
Why it matters
A reviewed impact interpretation has not been published for this record.
Evidence and limitations
- Source ID
- tenable_blog
- Record identifier
- b9bedaad65be44b45d287fe4b0659e21548572b18704b7f30fee88b152e35aab
- Enrichment time
- 2026-04-14T20:52:27Z
- AI-assisted enrichment
- Yes
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