CISA Known Exploited Vulnerabilities Catalog
cisa-kev · HIGH · active
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
Authoritative for actively-exploited vulns with federal remediation deadlines. WebFetch is reliably HTTP 403 on this host (transport-side block on the routine UA, ongoing since 2026-05-06; re-confirmed 2026-05-08). REQUIRED FETCH METHOD for both main agent AND every sub-agent: `python3 tools/fetch_source.py cisa-kev` returns the full KEV JSON catalog. Do NOT call WebFetch on cisa.gov; treat the 403 as a transport block — it never demotes the source.
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