VulnerabilityModified

CVE-2021-26877

Windows DNS Server Remote Code Execution Vulnerability

CRITICAL 9.8EPSS 16.5%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 16.5%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

Description

Windows DNS Server Remote Code Execution Vulnerability

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 16.53% probability · 97th percentile
CISA KEV: Not listed
Affected: microsoft/windows server 2008 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019
Source: secure@microsoft.com

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26877
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26877Patch, Vendor Advisory

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