---
description: Cloudflare Radar now includes Zero Wire, a hub of briefings on critical vulnerabilities and threats, with confirmed facts, open questions, remediation steps, and related Cloudflare data.
title: Zero Wire, a hub for investigating critical Internet vulnerabilities
image: https://developers.cloudflare.com/changelog/post/2026-11-03-radar-zero-wire/og.png?v=93297e1e9b9dffa8
---

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November 3, 2026

## Zero Wire, a hub for investigating critical Internet vulnerabilities

[Radar](https://developers.cloudflare.com/radar/)

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[**Cloudflare Radar**](https://developers.cloudflare.com/radar/) now includes [Zero Wire ↗︎](https://radar.cloudflare.com/security/zero-wire), a hub for investigating critical Internet vulnerabilities and threats. Each briefing separates confirmed facts from open questions, lists remediation steps, and shows what Cloudflare observes about the threat.

![Zero Wire page listing briefings under Needs attention, each with its recommended action, CVEs, tags, why it needs attention, and what to do now](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2250,height=2080,format=webp/_astro/radar-zero-wire-list.D0WVtObi.webp)

#### Briefings

Briefings are grouped by urgency. **Needs attention** covers active incidents, new guidance, or unresolved scope that security teams should review now. **Reference** keeps stable briefings available, even if not every affected system has been patched. Each card shows the recommended action and summarizes what happened, why it matters, and what to do.

Each briefing page expands on the card with an update chronology and an overview, followed by:

- **What to do now**: remediation steps, plus a prompt to copy into an AI agent with access to your infrastructure, asking for an evidence-based assessment of affected systems and exposure.
- **Cloudflare coverage**: the Cloudflare products that protect against the threat, and any impact on Cloudflare's own services.
- **Evidence and sources**: vendor advisories, CVE records, the CISA Known Exploited Vulnerabilities (KEV) catalog, and Radar charts, such as requests matching the related Cloudflare WAF rules.

![Zero Wire briefing for the Linux IPv4 TCP use-after-free, showing its recommended action, CVE, tags, update chronology, overview, and table of contents](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2250,height=3267,format=webp/_astro/radar-zero-wire-briefing.xfQ6L2bX.webp)

#### Follow updates

Search briefings by CVE, name, or tag, or browse every briefing with a given tag. To follow new briefings and updates, subscribe to the [Zero Wire RSS feed ↗︎](https://radar.cloudflare.com/security/zero-wire/rss) or to the feed of a single tag. New briefings also appear in the [**Caught on Radar** ↗︎](https://radar.cloudflare.com/#caught-on-radar) section of the Radar homepage.

Send questions or feedback from any briefing page, or at [radar@cloudflare.com](mailto:radar@cloudflare.com).

For more details, read the [blog post ↗︎](https://blog.cloudflare.com/zero-wire/) or visit [Zero Wire ↗︎](https://radar.cloudflare.com/security/zero-wire).

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