What is the severity of CVE-2021-1678?

CVE-2021-1678 has a CVSS score indicating its critical severity due to its potential for NTLM security bypass.

How do I fix CVE-2021-1678?

To mitigate CVE-2021-1678, apply the latest security patches for your affected Microsoft Windows products.

Which Microsoft products are affected by CVE-2021-1678?

CVE-2021-1678 affects various Windows 10 and Windows Server versions including 1803, 1809, 1909, and more.

What type of vulnerability is CVE-2021-1678?

CVE-2021-1678 is classified as a security feature bypass vulnerability related to the Windows Print Spooler.

Can CVE-2021-1678 be exploited remotely?

Yes, CVE-2021-1678 can potentially be exploited remotely via network protocols if left unpatched.

Vulnerability/
CVE-2021-1678

high

8.8

12/1/2021

8/10/2024

CVE-2021-1678: Windows Print Spooler Spoofing Vulnerability

First published: Tue Jan 12 2021(Updated: )

NTLM Security Feature Bypass Vulnerability

Credit: secure@microsoft.com

Affected Software	Affected Version	How to fix
Microsoft Windows Server 2008 R2		fix available externally fix available externally
Microsoft Windows Server	=1909	fix available externally
Microsoft Windows Server 2012 R2		fix available externally fix available externally
Microsoft Windows Server	=20H2	fix available externally
Microsoft Windows 7		fix available externally fix available externally
Microsoft Windows Server 2008 R2		fix available externally fix available externally
Microsoft Windows 7		fix available externally fix available externally
Microsoft Windows Server 2012 R2		fix available externally fix available externally
Microsoft Windows Server	=2004	fix available externally
Microsoft Windows RT		fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows Server		fix available externally fix available externally
Microsoft Windows 8.1		fix available externally fix available externally
Microsoft Windows 8.1		fix available externally fix available externally
Microsoft Windows Server 2019		fix available externally
Microsoft Windows Server 2019		fix available externally
Microsoft Windows Server 2016		fix available externally
Microsoft Windows Server 2016		fix available externally
Windows 10	=20H2	fix available externally
Windows 10	=20H2	fix available externally
Windows 10	=1803	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1809	fix available externally
Windows 10	=1607	fix available externally
Windows 10	=1607	fix available externally
Windows 10	=1909	fix available externally
Windows 10	=1909	fix available externally
Windows 10	=1909	fix available externally
Windows 10		fix available externally
Windows 10	=1803	fix available externally
Windows 10	=1803	fix available externally
Windows 10		fix available externally
Windows 10	=2004	fix available externally
Windows 10	=2004	fix available externally
Windows 10	=2004	fix available externally
Windows 10
Windows 10	=20h2
Windows 10	=1607
Windows 10	=1803
Windows 10	=1809
Windows 10	=1909
Windows 10	=2004
Microsoft Windows 7	=sp1
Microsoft Windows
Microsoft Windows RT
Microsoft Windows Server	=sp2
Microsoft Windows Server	=r2-sp1
Microsoft Windows Server
Microsoft Windows Server	=r2
Microsoft Windows Server 2016
Microsoft Windows Server 2016	=20h2
Microsoft Windows Server 2016	=1909
Microsoft Windows Server 2016	=2004
Microsoft Windows Server 2019

Remedy

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1678

Never miss a vulnerability like this again

Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-1678?
CVE-2021-1678 has a CVSS score indicating its critical severity due to its potential for NTLM security bypass.
How do I fix CVE-2021-1678?
To mitigate CVE-2021-1678, apply the latest security patches for your affected Microsoft Windows products.
Which Microsoft products are affected by CVE-2021-1678?
CVE-2021-1678 affects various Windows 10 and Windows Server versions including 1803, 1809, 1909, and more.
What type of vulnerability is CVE-2021-1678?
CVE-2021-1678 is classified as a security feature bypass vulnerability related to the Windows Print Spooler.
Can CVE-2021-1678 be exploited remotely?
Yes, CVE-2021-1678 can potentially be exploited remotely via network protocols if left unpatched.

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