Is CVE-2021-38517 in the CISA KEV catalog?

No. CVE-2021-38517 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38517?

CVE-2021-38517 has a CVSS v3 base score of 6.9 (MEDIUM).

What is the EPSS score for CVE-2021-38517?

CVE-2021-38517 has an EPSS score of 0.76% (51th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38517?

Upgrade r6400 firmware to 1.0.1.70 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38517

MEDIUM

6.9

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by out-of-bounds reads and writes. This affects R6400 before 1.0.1.70, RAX75 before 1.0.4.120, RAX80 before 1.0.4.120, and XR300 before 1.0.3.50.

CWE-125Out-of-bounds Read CWE-787Out-of-bounds Write

How to fix

Remediation Available

r6400 firmwareNVD

Affected:< 1.0.1.70Fixed in:1.0.1.70CVE-2021-38517derived from NVD

rax75 firmwareNVD

Affected:< 1.0.4.120Fixed in:1.0.4.120CVE-2021-38517derived from NVD

rax80 firmwareNVD

Affected:< 1.0.4.120Fixed in:1.0.4.120CVE-2021-38517derived from NVD

xr300 firmwareNVD

Affected:< 1.0.3.50Fixed in:1.0.3.50CVE-2021-38517derived 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 VectorAdjacent

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityHigh

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

Exploit Intelligence

0.76%probability of exploitation in 30 days

51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Vendor Advisory1

kb.netgear.com

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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.