What’s Vulnerable › Vulnerabilities

CVE-2021-45668

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-26 · updated 2026-06-17
• Weakness: CWE-79

Description

Certain NETGEAR devices are affected by stored XSS. This affects EAX20 before 1.0.0.48, EAX80 before 1.0.1.64, 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, R7960P before 1.4.1.66, R7900P before 1.4.1.66, R8000P before 1.4.1.66, RAX15 before 1.0.2.82, RAX20 before 1.0.2.82, RAX200 before 1.0.3.106, RAX45 before 1.0.2.72, RAX50 before 1.0.2.72, RAX75 before 1.0.3.106, and RAX80 before 1.0.3.106.

Affected products

• NETGEAR Eax20 Firmware: before 1.0.0.48 — fixed in 1.0.0.48
• NETGEAR Eax80 Firmware: before 1.0.1.64 — fixed in 1.0.1.64
• NETGEAR EX3700: before 1.0.0.90 — fixed in 1.0.0.90
• NETGEAR Ex3800 Firmware: before 1.0.0.90 — fixed in 1.0.0.90
• NETGEAR EX6120: before 1.0.0.64 — fixed in 1.0.0.64
• NETGEAR Ex6130 Firmware: before 1.0.0.44 — fixed in 1.0.0.44
• NETGEAR Ex7500 Firmware: before 1.0.0.72 — fixed in 1.0.0.72
• NETGEAR R7900P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
• NETGEAR R7960P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
• NETGEAR R8000P Firmware: before 1.4.1.66 — fixed in 1.4.1.66
• NETGEAR Rax15 Firmware: before 1.0.2.82 — fixed in 1.0.2.82
• NETGEAR Rax200 Firmware: before 1.0.3.106 — fixed in 1.0.3.106
• NETGEAR Rax20 Firmware: before 1.0.2.82 — fixed in 1.0.2.82
• NETGEAR Rax45 Firmware: before 1.0.2.72 — fixed in 1.0.2.72
• NETGEAR Rax50 Firmware: through 1.0.2.72
• NETGEAR Rax75 Firmware: before 1.0.3.106 — fixed in 1.0.3.106
• NETGEAR Rax80 Firmware: before 1.0.3.106 — fixed in 1.0.3.106

How to fix

Upgrade to a fixed version: NETGEAR Eax20 Firmware 1.0.0.48; NETGEAR Eax80 Firmware 1.0.1.64; NETGEAR EX3700 1.0.0.90; NETGEAR Ex3800 Firmware 1.0.0.90; NETGEAR EX6120 1.0.0.64; NETGEAR Ex6130 Firmware 1.0.0.44; NETGEAR Ex7500 Firmware 1.0.0.72; NETGEAR R7900P Firmware 1.4.1.66; NETGEAR R7960P Firmware 1.4.1.66; NETGEAR R8000P Firmware 1.4.1.66; NETGEAR Rax15 Firmware 1.0.2.82; NETGEAR Rax200 Firmware 1.0.3.106. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000064122/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-and-Extenders-PSV-2020-0257
• https://kb.netgear.com/000064122/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Routers-and-Extenders-PSV-2020-0257

Get alerted when CVE-2021-45668 or the next vulnerability affects your stack