A researcher can describe it as critical in text
But CVE scoring has a real methodology with various frameworks and takes time to do properly, just have a look at the NIST CVSS calculator
A valid critical 9+ cve score is more science than propaganda
can it be that some of the redteam's critical vulnerabilities found are actually 7 or 8 cve? yes possible, but those are sill valid vulns to patch
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