CVE-2021-34453

Microsoft Exchange Server Denial of Service Vulnerability
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
microsoftCNA
7.5 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
CISA-ADPADP
---
---
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 89%
VendorProductVersion
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.986.9
microsoftexchange_server
15.2.0.0 ≤
𝑥
< 15.2.922.14
microsoftexchange_server
15.1.0.0 ≤
𝑥
< 15.1.2308.15
microsoftexchange_server
15.1.0.0 ≤
𝑥
< 15.1.2375.12
𝑥
= Vulnerable software versions
References
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34453
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34453