by Kastro
Paper/Archive/CVE-2021-26427

CVE-2021-26427

Microsoft Microsoft Exchange Server 2016 Cumulative Update 22 — Microsoft Exchange Server Remote Code Execution Vulnerability

EPSS 0.9%CVSS 9.0
critical.is priorityof 100
39
CVSS 9.0 (CNA)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 59.5.595 × 2011.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

Microsoft Exchange Server Remote Code Execution Vulnerability

Affected

ProductAffectedFixed inSource
Microsoft Exchange Server 2016 Cumulative Update 2215.0.0 – < 15.01.2375.01215.01.2375.012CNA
Microsoft Exchange Server 2019 Cumulative Update 1115.02.0 – < 15.02.0986.00915.02.0986.009CNA
Microsoft Exchange Server 2013 Cumulative Update 2315.00.0 – < 15.00.1497.02415.00.1497.024CNA
Microsoft Exchange Server 2016 Cumulative Update 2115.01.0 – < 15.01.2308.01515.01.2308.015CNA
Microsoft Exchange Server 2019 Cumulative Update 1015.02.0 – < 15.02.0922.01415.02.0922.014CNA

Scores by source

microsoft (CNA)9.0CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

References

refportal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427