Is CVE-2021-45673 in the CISA KEV catalog?

No. CVE-2021-45673 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-45673?

CVE-2021-45673 has a CVSS v3 base score of 4.8 (MEDIUM).

What is the EPSS score for CVE-2021-45673?

CVE-2021-45673 has an EPSS score of 0.48% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-45673?

Upgrade r6900p firmware to 1.3.3.140 or later. Fixes are available for 8 affected products.

CVE & CISA-KEV Catalog

CVE-2021-45673

MEDIUM

4.8

CVSS v3

NVD

Description

Certain NETGEAR devices are affected by stored XSS. This affects R7000 before 1.0.11.110, R7900 before 1.0.4.30, R8000 before 1.0.4.62, RAX200 before 1.0.3.106, R7000P before 1.3.3.140, RAX80 before 1.0.3.106, R6900P before 1.3.3.140, and RAX75 before 1.0.3.106.

CWE-79Cross-Site Scripting (XSS)

How to fix

Remediation Available

r6900p firmwareNVD

Affected:< 1.3.3.140Fixed in:1.3.3.140CVE-2021-45673derived from NVD

r7000 firmwareNVD

Affected:< 1.0.11.110Fixed in:1.0.11.110CVE-2021-45673derived from NVD

r7000p firmwareNVD

Affected:< 1.3.3.140Fixed in:1.3.3.140CVE-2021-45673derived from NVD

r7900 firmwareNVD

Affected:< 1.0.4.30Fixed in:1.0.4.30CVE-2021-45673derived from NVD

r8000 firmwareNVD

Affected:< 1.0.4.62Fixed in:1.0.4.62CVE-2021-45673derived from NVD

rax200 firmwareNVD

Affected:< 1.0.3.106Fixed in:1.0.3.106CVE-2021-45673derived from NVD

rax75 firmwareNVD

Affected:< 1.0.3.106Fixed in:1.0.3.106CVE-2021-45673derived from NVD

rax80 firmwareNVD

Affected:< 1.0.3.106Fixed in:1.0.3.106CVE-2021-45673derived 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 RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.48%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Patch1

kb.netgear.com

Related Vulnerabilities

Other CWE-79 (Cross-Site Scripting (XSS)) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-11022	Medium	6.9	99%	-	Fix
CVE-2019-3929	Critical	9.8	99%	KEV	Fix
CVE-2020-9496	Medium	6.1	99%	-	-
CVE-2023-28341	Medium	6.1	99%	-	Fix
CVE-2018-12998	Medium	6.1	98%	-	-
CVE-2025-4123	High	7.6	98%	-	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.