What’s Vulnerable › Vulnerabilities

CVE-2021-45665

• 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 1.0.0.36, 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.

Affected products

• NETGEAR Eax20 Firmware: before 1.0.0.36 — fixed in 1.0.0.36
• NETGEAR Eax80 Firmware: before 1.0.1.62 — fixed in 1.0.1.62
• 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 Rbk752 Firmware: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbk852 Firmware: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbr750 Firmware: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbr850 Firmware: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbs40V Firmware: before 2.6.1.4 — fixed in 2.6.1.4
• Netgear Orbi Satellite RBS750: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbs850 Firmware: before 3.2.16.6 — fixed in 3.2.16.6
• NETGEAR Rbw30 Firmware: before 2.6.1.4 — fixed in 2.6.1.4

How to fix

Upgrade to a fixed version: NETGEAR Eax20 Firmware 1.0.0.36; NETGEAR Eax80 Firmware 1.0.1.62; 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 Rbk752 Firmware 3.2.16.6; NETGEAR Rbk852 Firmware 3.2.16.6; NETGEAR Rbr750 Firmware 3.2.16.6; NETGEAR Rbr850 Firmware 3.2.16.6; NETGEAR Rbs40V Firmware 2.6.1.4. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000064120/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Extenders-and-WiFi-Systems-PSV-2020-0247
• https://kb.netgear.com/000064120/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Extenders-and-WiFi-Systems-PSV-2020-0247

Get alerted when CVE-2021-45665 or the next vulnerability affects your stack