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Digest · Tuesday

Security digest: June 9, 2026

3 known exploited (cisa kev) additions and 3 critical advisories.

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Take stock

  • Do you run any of these? Arista Extensible Operating System, Cisco Catalyst SD-WAN Manager, Google Chromium V8. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-06-23.
  • npm: 1 critical advisory (shell-quote). Check with npm audit (or: npm ls <package>).
  • Composer (PHP): 1 critical advisory (pheditor/pheditor). Check with composer audit.
  • Hex (Erlang/Elixir): 1 critical advisory (phoenix_storybook). Check with mix hex.audit.
  • None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

Known exploited (CISA KEV) 3

Added to CISA’s catalog on this day: confirmed exploitation in the wild. Due date = CISA’s deadline for US federal agencies.

CVEProduct and flawCISA due
CVE-2026-7473Arista Extensible Operating System
Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability		2026-06-23
CVE-2026-20245Cisco Catalyst SD-WAN Manager
Cisco Catalyst SD-WAN Manager Improper Encoding or Escaping of Output Vulnerability		2026-06-23
CVE-2026-11645Google Chromium V8
Google Chromium V8 Out-of-Bounds Read and Write Vulnerability		2026-06-23

Critical advisories by ecosystem 3

GitHub-reviewed advisories rated critical, published this day (Pacific time).

Composer (PHP) 1

Check: composer audit

Hex (Erlang/Elixir) 1

Check: mix hex.audit

npm 1

Check: npm audit (or: npm ls <package>)