Is CVE-2021-34466 in the CISA KEV catalog?

No. CVE-2021-34466 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34466?

CVE-2021-34466 has a CVSS v3 base score of 5.7 (MEDIUM).

What is the EPSS score for CVE-2021-34466?

CVE-2021-34466 has an EPSS score of 0.65% (47th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34466?

Install KB5004244 for Windows 10 Version 1809. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-34466

MEDIUM

5.7

CVSS v3

NVD

Description

Windows Hello Security Feature Bypass Vulnerability

CWE-290

How to fix

Remediation Available

Windows 10 Version 1809Windows

Install:KB5004244Microsoft

Windows 10 Version 1909Windows

Install:KB5004245Microsoft

Windows 10 Version 2004Windows

Install:KB5004237Microsoft

Windows 10 Version 20H2Windows

Install:KB5004237Microsoft

Windows 10 Version 21H1Windows

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 VectorPhysical

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.65%probability of exploitation in 30 days

47thpercentile

Moderate risk: more likely to be exploited than 47% of all known CVEs.

References

Patch1

portal.msrc.microsoft.com

Related Vulnerabilities

Other CWE-290 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4358	Critical	9.8	97%	KEV	-
CVE-2022-24112	Critical	9.8	96%	KEV	Fix
CVE-2022-23131	Critical	9.1	96%	KEV	-
CVE-2021-29441	High	8.6	74%	-	Fix
CVE-2021-31195	Medium	6.5	74%	-	Fix
CVE-2020-7388	Critical	10.0	70%	-	Fix

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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.