High severity · published Jul 14, 2021
CVE-2021-33772
Windows TCP/IP Driver Denial of Service Vulnerability
7.5
CVSS
3.3%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Windows · Microsoft
20h2; 21h1; 2004 · source: NVD
W1
Windows 10 Version 2004 · Microsoft
10.0.0 before 10.0.19041.1110 · source: vendor
W1
Windows 10 Version 20H2 · Microsoft
10.0.0 before 10.0.19042.1110 · source: vendor
W1
Windows 10 Version 21H1 · Microsoft
10.0.0 before 10.0.19043.1110 · source: vendor
WS
Windows Server version 2004 · Microsoft
10.0.0 before 10.0.19041.1110 · source: vendor
WS
Windows Server version 20H2 · Microsoft
10.0.0 before 10.0.19042.1110 · source: vendor
WS
Windows Server 2016 · Microsoft
20h2; 2004 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33772
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33772
msrc.microsoft.com
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-33772
Patch
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-33772
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