Is CVE-2021-38520 in the CISA KEV catalog?

No. CVE-2021-38520 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38520?

CVE-2021-38520 has a CVSS v3 base score of 6.6 (MEDIUM).

What is the EPSS score for CVE-2021-38520?

CVE-2021-38520 has an EPSS score of 1.50% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38520?

Upgrade r6400 firmware to 1.0.4.84 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38520

MEDIUMEPSS 71th pctl

6.6

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R6400 before 1.0.1.52, R6400v2 before 1.0.4.84, R6700v3 before 1.0.4.84, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, and R7000P before 1.3.2.124.

CWE-77Command Injection

How to fix

Remediation Available

r6400 firmwareNVD

Affected:< 1.0.4.84Fixed in:1.0.4.84CVE-2021-38520derived from NVD

r6700 firmwareNVD

Affected:< 1.0.4.84Fixed in:1.0.4.84CVE-2021-38520derived from NVD

r6900 firmwareNVD

Affected:< 1.2.0.62Fixed in:1.2.0.62CVE-2021-38520derived from NVD

r7000p firmwareNVD

Affected:< 1.3.2.124Fixed in:1.3.2.124CVE-2021-38520derived from NVD

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 ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.50%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Related Vulnerabilities

Other CWE-77 (Command Injection) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-3400	Critical	10.0	100%	KEV + Ransom	-
CVE-2024-21887	Critical	9.1	100%	KEV + Ransom	-
CVE-2023-1671	Critical	9.8	100%	KEV	Fix
CVE-2023-1389	High	8.8	100%	KEV	Fix
CVE-2021-1498	Critical	9.8	100%	KEV	Fix
CVE-2012-1823	Critical	9.8	100%	KEV	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.