Virtual Patching
A security mitigation technique that emulates the effect of a patch at the network edge and blocks known attack patterns without modifying application code, typically used as a temporary measure between vulnerability disclosure and deployment of the official patch.
Timeline (last 90 days)
Virtual patching (such as WAF rules), although unable to fundamentally fix a vulnerability, can reduce the risk of exploitation before the official patch is in place.
The rules Cloudflare deployed this time are essentially a kind of "virtual patch."
A virtual patch can only cover the known attack vectors described by the rules and cannot fix the underlying flaw in the code.
Virtual patches are usually positioned as a temporary mitigation measure, used to fill the gap between vulnerability disclosure and the full deployment of an official patch.
All Facts (4)
Virtual patching (such as WAF rules), although unable to fundamentally fix a vulnerability, can reduce the risk of exploitation before the official patch is in place.
50%UnverifiedThe rules Cloudflare deployed this time are essentially a kind of "virtual patch."
50%UnverifiedA virtual patch can only cover the known attack vectors described by the rules and cannot fix the underlying flaw in the code.
50%UnverifiedVirtual patches are usually positioned as a temporary mitigation measure, used to fill the gap between vulnerability disclosure and the full deployment of an official patch.
50%