CVE-2021-26877 — CRITICAL (9.8)

Vulnerability Description

Windows DNS Server Remote Code Execution Vulnerability

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Microsoft	Windows Server 2008	-
Microsoft	Windows Server 2012	-
Microsoft	Windows Server 2016	-
Microsoft	Windows Server 2019	-

References

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2687PatchVendor Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-2687PatchVendor Advisory

FAQ

What is CVE-2021-26877?

CVE-2021-26877 is a vulnerability with a CVSS score of 9.8 (CRITICAL). Windows DNS Server Remote Code Execution Vulnerability

How severe is CVE-2021-26877?

CVE-2021-26877 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2021-26877?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows Server 2008, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Microsoft Windows Server 2019.