VulnerabilityModified

CVE-2021-33768

Microsoft Exchange Server Elevation of Privilege Vulnerability

HIGH 8.0EPSS 1.23%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.23%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Microsoft Exchange Server Elevation of Privilege Vulnerability

CVSS 3.1: 8.0 HIGHCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 1.23% probability · 67th percentile
CISA KEV: Not listed
Affected: microsoft/exchange server
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33768
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33768Patch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.