Is CVE-2021-38521 in the CISA KEV catalog?

No. CVE-2021-38521 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38521?

CVE-2021-38521 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2021-38521?

CVE-2021-38521 has an EPSS score of 0.87% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38521?

Upgrade r6400 firmware to 1.0.1.50 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38521

MEDIUM

6.1

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R6400 before 1.0.1.50, R7900P before 1.4.1.50, R8000P before 1.4.1.50, RAX75 before 1.0.1.62, and RAX80 before 1.0.1.62.

CWE-77Command Injection

How to fix

Remediation Available

r6400 firmwareNVD

Affected:< 1.0.1.50Fixed in:1.0.1.50CVE-2021-38521derived from NVD

r7900p firmwareNVD

Affected:< 1.4.1.50Fixed in:1.4.1.50CVE-2021-38521derived from NVD

r8000p firmwareNVD

Affected:< 1.4.1.50Fixed in:1.4.1.50CVE-2021-38521derived from NVD

rax75 firmwareNVD

Affected:< 1.0.1.62Fixed in:1.0.1.62CVE-2021-38521derived from NVD

rax80 firmwareNVD

Affected:< 1.0.1.62Fixed in:1.0.1.62CVE-2021-38521derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredHigh

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.87%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% 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.