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Vulnerability record · CVE-2021-45665 · published 26 December 2021

CVE-2021-45665: Netgear eax20 firmware cross-site scripting vulnerability

Netgear · Eax20 Firmware

Certain NETGEAR devices are affected by stored XSS. This affects EAX20 before 1.0.0.36, EAX80 before 1.0.1.62, EX3700 before 1.0.0.90, EX3800 before 1.0.0.90, EX6120 before 1.0.0.64, EX6130 before 1.0.0.44, EX7500 before 1.0.0.72, RBW30 before 2.6.1.4, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, and RBS40V before 2.6.1.4.

4.8 CVSS 3.1 Medium EPSS 0.42% · top 65.5% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score, v2 3.5
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
15Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Certain NETGEAR devices are affected by stored XSS. This affects EAX20 before 1.0.0.36, EAX80 before 1.0.1.62, EX3700 before 1.0.0.90, EX3800 before 1.0.0.90, EX6120 before 1.0.0.64, EX6130 before 1.0.0.44, EX7500 before 1.0.0.72, RBW30 before 2.6.1.4, RBK752 before 3.2.16.6, RBR750 before 3.2.16.6, RBS750 before 3.2.16.6, RBK852 before 3.2.16.6, RBR850 before 3.2.16.6, RBS850 before 3.2.16.6, and RBS40V before 2.6.1.4.

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

Affected products

15 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://kb.netgear.com/000064120/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Extenders-and-WiFi-Systems-PS PatchVendor Advisory
https://kb.netgear.com/000064120/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Extenders-and-WiFi-Systems-PS PatchVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2021-45622Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, …EPSS 2.4%9.8CVE-2021-45610Netgear d6220 firmware classic buffer overflow vulnerabilityCertain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D6220 before 1.0.0.66, D6400 before 1.0.0.100,…EPSS 1.4%9.8CVE-2021-45620Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, …EPSS 2.0%9.8CVE-2021-45612Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 4.6.3.6, …EPSS 2.5%9.8CVE-2021-45621Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, CBR750 before 3.2.18.2,…EPSS 2.0%9.8CVE-2021-45617Netgear cbr40 firmware command injection vulnerabilityCertain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects CBR40 before 2.5.0.24, EAX20 before 1.0.0.48, …EPSS 2.1%9.8CVE-2021-45512Netgear d7000 firmware broken cryptographic algorithm vulnerabilityCertain NETGEAR devices are affected by weak cryptography. This affects D7000v2 before 1.0.0.62, D8500 before 1.0.3.50, EX3700 before 1.0.0.84, EX380…EPSS 0.54%9.8CVE-2021-38513Netgear rbk852 firmware vulnerabilityCertain NETGEAR devices are affected by authentication bypass. This affects RBK852 before 3.2.10.11, RBR850 before 3.2.10.11, RBS850 before 3.2.10.11…EPSS 1.8%

Source: NIST National Vulnerability Database (record CVE-2021-45665), CISA KEV, FIRST EPSS (scores of 2026-10-14). This page is refreshed as NVD updates the record.