Vulnerability Monitor

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CVE-2021-31198

Microsoft Exchange Server Remote Code Execution Vulnerability

Published

2021-05-11T19:15:10.257

Last Modified

2025-02-28T21:15:17.550

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-20
Type: Secondary
CWE-94

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	microsoft	exchange_server	2013	Yes
Application	microsoft	exchange_server	2016	Yes
Application	microsoft	exchange_server	2016	Yes
Application	microsoft	exchange_server	2019	Yes
Application	microsoft	exchange_server	2019	Yes

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31198 Patch, Vendor Advisory ([email protected])
https://www.zerodayinitiative.com/advisories/ZDI-21-894/ Third Party Advisory, VDB Entry ([email protected])
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31198 Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.zerodayinitiative.com/advisories/ZDI-21-894/ Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)