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Microsoft Exchange Server 2016 Cumulative Update 9
KEV only
CVE-2021-27065
KEV · Ransomware
PUBLISHED · updated Oct 1, 2026
CVE-2021-26858
KEV · Ransomware
PUBLISHED · updated Oct 1, 2026
CVE-2021-26857
KEV · Ransomware
PUBLISHED · updated Aug 19, 2026
CVE-2021-26855
KEV · Ransomware
PUBLISHED · updated Aug 19, 2026
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Microsoft Exchange Server 2016 Cumulative Update 9 — CVEs & Known Exploited Vulnerabilities · Firetruck
