CISA KEV patch-or-wait: use due dates, reachability evidence, and signed VEX

Patch CISA KEV entries by the catalog due date. Start a 3-business-day reachability clock at KEV add to decide patch or defer with signed VEX evidence. Independent technical note mirroring the canonical version: https://tomoguides.com/blog/cisa-kev-patch-or-wait-use-due-dates-reachability-evidence-and-signed-vex.php

Authors

Publication Details

Journal
Zenodo (CERN European Organization for Nuclear Research)
Published
2026-11-07
DOI
https://doi.org/10.5281/zenodo.24043578
Primary Topic
Information and Cyber Security
Type
preprint
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preprint

CISA KEV patch-or-wait: use due dates, reachability evidence, and signed VEX

Blake Ferguson
2 links
Zenodo (CERN European Organization for Nuclear Research)
Information and Cyber Security
preprint

CISA KEV patch-or-wait: use due dates, reachability evidence, and signed VEX

Blake Ferguson
preprint en

Abstract

Patch CISA KEV entries by the catalog due date. Start a 3-business-day reachability clock at KEV add to decide patch or defer with signed VEX evidence. Independent technical note mirroring the canonical version: https://tomoguides.com/blog/cisa-kev-patch-or-wait-use-due-dates-reachability-evidence-and-signed-vex.php

Zenodo (CERN European Organization for Nuclear Research)
Information and Cyber Security
DOIOpen Access PDFOpenAlex
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CISA KEV patch-or-wait: use due dates, reachability evidence, and signed VEX — Blake Ferguson · Zenodo (CERN European Organization for Nuclear Research) (2026) | TGRS Research Map | TGRS