Cloudflare has introduced Zero Wire, a public vulnerability intelligence feed within the security section of Cloudflare Radar. It is designed to help security teams understand significant vulnerabilities, assess potential exposure and decide what actions to take.
Rather than cataloging every CVE, Zero Wire focuses on critical vulnerabilities in Internet-facing software, including web applications, their runtimes and libraries, and services exposed to the Internet. Briefings explain the issue, identify which deployments may need investigation, describe what is known about exploitation and link to vendor guidance and other evidence.
Each entry includes recommended next steps, such as checking affected versions, applying vendor updates, reviewing suspicious activity or maintaining compensating controls while patching. Users can search briefings by CVE or issue name and follow technology tags to related entries. One briefing may cover multiple related CVEs when considering them together makes the response clearer.
The homepage groups entries into “Needs attention” and “Reference.” The first category covers issues requiring active assessment or action, while the second retains briefings whose guidance has stabilized. A move to Reference does not mean all affected systems have been patched. Status information and the last-checked date are intended to be read alongside the evidence, rather than treated as a verdict on an organization’s own systems.
Briefings also include a prompt that teams can use with an AI agent to conduct a read-only assessment of deployed software, relevant fixes, exposure and compensating controls. It requests evidence for each asset, unknowns and suggested actions; using the prompt does not itself scan or change systems.
Cloudflare says the feed combines its security research and network observations with external sources, including CVE records, vendor advisories and, where relevant, CISA’s Known Exploited Vulnerabilities catalog. The briefings distinguish evidence of attack attempts from proof of compromise: traffic matching a Web Application Firewall rule does not show that a system was successfully exploited, and the absence of such traffic on Cloudflare’s network does not establish that exploitation is not occurring elsewhere.
Where Cloudflare protections can help, an entry explains their scope and configuration requirements. A WAF rule is a compensating control for the traffic it covers, not a replacement for fixing vulnerable software. Links to dashboard settings do not automatically enable a rule or verify a deployment, and teams are directed to follow vendor remediation guidance.
Cloudflare’s example is the php2shell vulnerability, which concerns flaws in the PHP runtime. Updating a WordPress or Magento application or plugin alone would not fix an affected runtime. The briefing directs teams to identify the runtime in use and consult PHP’s security guidance for affected versions and remediation. Its chart of HTTP requests matching Cloudflare WAF managed rules is presented as an indication of attention from threat actors, not a count of compromised systems or successful exploits.
Sources: Cloudflare Blog.