Is CVE-2021-45516 in the CISA KEV catalog?

No. CVE-2021-45516 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-45516?

CVE-2021-45516 has a CVSS v3 base score of 6.9 (MEDIUM).

What is the EPSS score for CVE-2021-45516?

CVE-2021-45516 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-45516?

Upgrade r6400 firmware to 1.0.1.70 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2021-45516

MEDIUM

6.9

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by denial of service. This affects R6400 before 1.0.1.70, R7000 before 1.0.11.126, R6900P before 1.3.3.140, R7000P before 1.3.3.140, R8000 before 1.0.4.74, RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, and RBS850 before 3.2.10.11.

How to fix

Remediation Available

r6400 firmwareNVD

Affected:< 1.0.1.70Fixed in:1.0.1.70CVE-2021-45516derived from NVD

r6900p firmwareNVD

Affected:< 1.3.3.140Fixed in:1.3.3.140CVE-2021-45516derived from NVD

r7000 firmwareNVD

Affected:< 1.0.11.126Fixed in:1.0.11.126CVE-2021-45516derived from NVD

r7000p firmwareNVD

Affected:< 1.3.3.140Fixed in:1.3.3.140CVE-2021-45516derived from NVD

r8000 firmwareNVD

Affected:< 1.0.4.74Fixed in:1.0.4.74CVE-2021-45516derived from NVD

rbk852 firmwareNVD

Affected:< 3.2.10.11Fixed in:3.2.10.11CVE-2021-45516derived from NVD

rbr850 firmwareNVD

Affected:< 3.2.10.11Fixed in:3.2.10.11CVE-2021-45516derived from NVD

rbs850 firmwareNVD

Affected:< 3.2.10.11Fixed in:3.2.10.11CVE-2021-45516derived 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

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Vendor Advisory1

kb.netgear.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.