Is CVE-2021-33772 in the CISA KEV catalog?

No. CVE-2021-33772 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-33772?

CVE-2021-33772 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-33772?

CVE-2021-33772 has an EPSS score of 3.03% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-33772?

Install KB5004237 for Windows 10 Version 2004. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-33772

HIGHEPSS 86th pctl

7.5

CVSS v3

NVD

Description

Windows TCP/IP Driver Denial of Service Vulnerability

How to fix

Remediation Available

Windows 10 Version 2004Windows

Install:KB5004237Microsoft

Windows 10 Version 20H2Windows

Install:KB5004237Microsoft

Windows 10 Version 21H1Windows

Install:KB5004237Microsoft

Windows Server, version 2004 (Server Core installation)Windows

Install:KB5004237Microsoft

Windows Server, version 20H2 (Server Core Installation)Windows

Install:KB5004237Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.03%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.