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CVE-2021-31206highobserved exploitation

Microsoft Exchange Server Remote Code Execution Vulnerability

48Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck.

ssvc Actcvss 7.6epss 13%
from disclosure to weapon
Published on NVDJul 14
VulnCheck+187d
exploitation probability
13%top 4% of all CVEs
observed exploitation
yesVulnCheck
Microsoft Exchange Server Remote Code Execution Vulnerability
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:L/E:F/RL:O/RC:C
Affected products
Microsoft · Microsoft Exchange Server 2013 Cumulative Update 23Microsoft · Microsoft Exchange Server 2016 Cumulative Update 20Microsoft · Microsoft Exchange Server 2016 Cumulative Update 21Microsoft · Microsoft Exchange Server 2019 Cumulative Update 10Microsoft · Microsoft Exchange Server 2019 Cumulative Update 9
References
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-31206https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31206https://www.zerodayinitiative.com/advisories/ZDI-21-826/