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The Internet Changes Before the Advisory Drops

infogreynoise_blogPublished 2026-04-20

Before Cisco disclosed a CVSS 10.0 zero-day, GreyNoise sensors had already observed eight surges of targeting activity compressing from 39 days to 2 days. A new study finds this pattern repeated across 33 CVEs and 16 vendor families — with a median lead time of 11 days. Read the full findings.

Original source: https://www.greynoise.io/blog/the-internet-changes-before-the-advisory-drops