---
title: Cloudflare launches Zero Wire, a free feed of plain-language briefings on critical internet-facing vulnerabilities inside Cloudflare Radar | ctxsec
url: https://ctxsec.com/items/cloudflare-zero-wire-radar-plain-language-critical-vulnerability-briefings
description: "Cloudflare's Zero Wire, live on Radar's security section, publishes selected critical vulnerabilities in internet-facing software as short briefings: what it is, who should investigate, what to do, what's known about exploitation, and links to vendor guidance and evidence. Briefings are split into 'Needs attention' and 'Reference', say whether a Cloudflare WAF rule helps and what it needs, and include a ready-made prompt for an AI agent to check your own exposure. It's open to non-customers and is meant to complement, not replace, advisories and CVE databases."
status: "official (Cloudflare blog, Nov 3)"
published: 2026-11-03
---

> Cloudflare's Zero Wire, live on Radar's security section, publishes selected critical vulnerabilities in internet-facing software as short briefings: what it is, who should investigate, what to do, what's known about exploitation, and links to vendor guidance and evidence. Briefings are split into 'Needs attention' and 'Reference', say whether a Cloudflare WAF rule helps and what it needs, and include a ready-made prompt for an AI agent to check your own exposure. It's open to non-customers and is meant to complement, not replace, advisories and CVE databases.

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official (Cloudflare blog, Nov 3)

2026-11-03

### Cloudflare launches Zero Wire, a free feed of plain-language briefings on critical internet-facing vulnerabilities inside Cloudflare Radar

Cloudflare says it keeps severity and evidence of exploitation separate, since teams need both to decide. Coverage is selective: only issues Cloudflare chooses to brief on, focused on web apps, runtimes and libraries, and exposed services. Treat it as one more triage input alongside CISA KEV and vendor advisories, and check the vendor's own advisory before acting on a briefing.

Sources: [Cloudflare: Introducing Zero Wire, a hub for investigating critical Internet vulnerabilities (Nov 3)](https://blog.cloudflare.com/zero-wire/)