Radar - Zero Wire, a hub for investigating critical Internet vulnerabilities

<p><a href="https://developers.cloudflare.com/radar/"><strong>Cloudflare Radar</strong></a> now includes <a href="https://radar.cloudflare.com/security/zero-wire" target="_blank" rel="noopener">Zero Wire<span class="external-link"> ↗︎</span></a>, 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.</p> <img src="https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2250,height=2080,format=webp/_astro/radar-zero-wire-list.D0WVtObi.webp" alt="Zero Wire page listing briefings under Needs attention, each with its recommended action, CVEs, tags, why it needs attention, and what to do now" loading="lazy" decoding="async" width="2250" height="2080"> <div tabindex="-1" class="heading-wrapper level-h4"><h4 id="briefings">Briefings</h4><a class="anchor-link" href="#briefings"><span aria-hidden="true" class="anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Briefings are grouped by urgency. <strong>Needs attention</strong> covers active incidents, new guidance, or unresolved scope that security teams should review now. <strong>Reference</strong> 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.</p> <p>Each briefing page expands on the card with an update chronology and an overview, followed by:</p> <ul> <li><strong>What to do now</strong>: 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.</li> <li><strong>Cloudflare coverage</strong>: the Cloudflare products that protect against the threat, and any impact on Cloudflare's own services.</li> <li><strong>Evidence and sources</strong>: vendor advisories, CVE records, the CISA Known Exploited Vulnerabilities (KEV) catalog, and Radar charts, such as requests matching the related Cloudflare WAF rules.</li> </ul> <img src="https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2250,height=3267,format=webp/_astro/radar-zero-wire-briefing.xfQ6L2bX.webp" alt="Zero Wire briefing for the Linux IPv4 TCP use-after-free, showing its recommended action, CVE, tags, update chronology, overview, and table of contents" loading="lazy" decoding="async" width="2250" height="3267"> <div tabindex="-1" class="heading-wrapper level-h4"><h4 id="follow-updates">Follow updates</h4><a class="anchor-link" href="#follow-updates"><span aria-hidden="true" class="anchor-icon"><svg width="16" height="16" viewBox="0 0 24 24"><path fill="currentcolor" d="m12.11 15.39-3.88 3.88a2.52 2.52 0 0 1-3.5 0 2.47 2.47 0 0 1 0-3.5l3.88-3.88a1 1 0 0 0-1.42-1.42l-3.88 3.89a4.48 4.48 0 0 0 6.33 6.33l3.89-3.88a1 1 0 1 0-1.42-1.42Zm8.58-12.08a4.49 4.49 0 0 0-6.33 0l-3.89 3.88a1 1 0 0 0 1.42 1.42l3.88-3.88a2.52 2.52 0 0 1 3.5 0 2.47 2.47 0 0 1 0 3.5l-3.88 3.88a1 1 0 1 0 1.42 1.42l3.88-3.89a4.49 4.49 0 0 0 0-6.33ZM8.83 15.17a1 1 0 0 0 1.1.22 1 1 0 0 0 .32-.22l4.92-4.92a1 1 0 0 0-1.42-1.42l-4.92 4.92a1 1 0 0 0 0 1.42Z"></path></svg></span></a></div> <p>Search briefings by CVE, name, or tag, or browse every briefing with a given tag. To follow new briefings and updates, subscribe to the <a href="https://radar.cloudflare.com/security/zero-wire/rss" target="_blank" rel="noopener">Zero Wire RSS feed<span class="external-link"> ↗︎</span></a> or to the feed of a single tag. New briefings also appear in the <a href="https://radar.cloudflare.com/#caught-on-radar" target="_blank" rel="noopener"><strong>Caught on Radar</strong><span class="external-link"> ↗︎</span></a> section of the Radar homepage.</p> <p>Send questions or feedback from any briefing page, or at <a href="mailto:radar@cloudflare.com">radar@cloudflare.com</a>.</p> <p>For more details, read the <a href="https://blog.cloudflare.com/zero-wire/" target="_blank" rel="noopener">blog post<span class="external-link"> ↗︎</span></a> or visit <a href="https://radar.cloudflare.com/security/zero-wire" target="_blank" rel="noopener">Zero Wire<span class="external-link"> ↗︎</span></a>.</p>