The 91% figure describes the vulnerability catalogue, not the cause of breaches. The only quantified entry-vector number anyone can cite is a 2016 survey of about 222 sites.
Cosmos Labs' own policy calls for private distribution before public disclosure on a network-wide risk. The advisory also never reached the global GitHub database, so no dependency scanner ever raised it.
Every stage uses documented Windows behaviour, so there is no patch, no KEV deadline and no scanner finding. The controls that reach it had to be set before the lure arrived.
You cannot patch your way out of hardware you have no reason to trust. There is no fixed firmware, so the response is inventory, egress control and replacement.
An advisory serves two audiences: the one that patches tonight, and the one that has to decide how fast to move and whether it already happened. This serves only the first.
The fix shipped on 27 July in a routine release. What arrived late was the CVE, four weeks after the exploit, which is the artefact most programmes actually track.