CVE-2021-31978: Microsoft Defender Denial of Service Vulnerability
Published Jun 8, 2021
·Updated
Microsoft Defender Denial of Service Vulnerability
Affected Software
1 affected component
Microsoft Malware Protection Engine<1.1.18200.3
Remediation
Event History
Jun 8, 2021
CVE Published
10:46 PM
Data Sourced
10:46 PM
DescriptionSeverity
Frequently Asked Questions
1
What is CVE-2021-31978?
CVE-2021-31978 is a vulnerability in Microsoft Defender that can be exploited to cause a denial of service.
2
How severe is CVE-2021-31978?
CVE-2021-31978 has a severity rating of 5.5 (Medium) according to the Common Vulnerability Scoring System (CVSS).
3
Which software is affected by CVE-2021-31978?
The vulnerability affects Microsoft Malware Protection Engine version up to 1.1.18200.3.
4
How can CVE-2021-31978 be fixed?
To fix CVE-2021-31978, update the Microsoft Malware Protection Engine to version 1.1.18203.0 or later.
5
Where can I find more information about CVE-2021-31978?
You can find more information about CVE-2021-31978 in the Microsoft Security Guidance Advisory at https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31978.