high
7.8
CWE
74
Advisory Published
Updated

CVE-2021-45657

First published: Sun Dec 26 2021(Updated: )

Certain NETGEAR devices are affected by server-side injection. This affects D6200 before 1.1.00.38, D7000 before 1.0.1.78, R6020 before 1.0.0.48, R6080 before 1.0.0.48, R6050 before 1.0.1.26, JR6150 before 1.0.1.26, R6120 before 1.0.0.66, R6220 before 1.1.0.100, R6230 before 1.1.0.100, R6260 before 1.1.0.78, R6800 before 1.2.0.76, R6900v2 before 1.2.0.76, R6700v2 before 1.2.0.76, R7450 before 1.2.0.76, AC2100 before 1.2.0.76, AC2400 before 1.2.0.76, AC2600 before 1.2.0.76, RBK40 before 2.5.1.16, RBR40 before 2.5.1.16, RBS40 before 2.5.1.16, RBK20 before 2.5.1.16, RBR20 before 2.5.1.16, RBS20 before 2.5.1.16, RBK50 before 2.5.1.16, RBR50 before 2.5.1.16, RBS50 before 2.5.1.16, RBS50Y before 2.6.1.40, and WNR2020 before 1.1.0.62.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
All of
NETGEAR D6200B firmware<1.1.00.38
NETGEAR D6200 firmware
All of
NETGEAR D7000v1 firmware<1.0.1.78
NETGEAR D7000 firmware
All of
NETGEAR R6020 firmware<1.0.0.48
NETGEAR R6020 firmware
All of
NETGEAR R6080 firmware<1.0.0.48
NETGEAR R6080 firmware
All of
NETGEAR R6050 firmware<1.0.1.26
NETGEAR R6050 firmware
All of
NETGEAR JR6150 firmware<1.0.1.26
NETGEAR JR6150
All of
NETGEAR R6120 firmware<1.0.0.66
NETGEAR R6120 firmware
All of
NETGEAR R6220 firmware<1.1.0.100
NETGEAR R6220 firmware
All of
NETGEAR R6230 firmware<1.1.0.110
NETGEAR R6230 firmware
All of
NETGEAR R6260 firmware<1.1.0.78
NETGEAR R6260 firmware
All of
NETGEAR R6800 firmware<1.2.0.76
NETGEAR R6800 firmware
All of
NETGEAR R6900v2<1.2.0.76
NETGEAR R6900v2 firmware
All of
Netgear R6700 Firmware<1.2.0.76
NETGEAR R6700v2 firmware
All of
NETGEAR R7450 firmware<1.2.0.76
NETGEAR R7450 firmware
All of
NETGEAR AC2100<1.2.0.76
NETGEAR AC2100 firmware
All of
NETGEAR AC2400 firmware<1.2.0.76
NETGEAR AC2400 firmware
All of
NETGEAR AC2600 firmware<1.2.0.76
NETGEAR AC2600
All of
NETGEAR RBK40<2.5.1.16
NETGEAR RBK40 firmware
All of
NETGEAR CBR40 firmware<2.5.1.16
NETGEAR RBR40 firmware
All of
NETGEAR RBS40 firmware<2.5.1.16
NETGEAR RBS40 firmware
All of
NETGEAR RBK20 Router Firmware<2.5.1.16
NETGEAR RBK20 firmware
All of
NETGEAR RBR20<2.5.1.16
NETGEAR RBR20
All of
NETGEAR RBS20 firmware<2.5.1.16
NETGEAR RBS20 firmware
All of
NETGEAR RBK50 firmware<2.5.1.16
NETGEAR RBK50
All of
NETGEAR RBR50 firmware<2.5.1.16
NETGEAR RBR50 firmware
All of
NETGEAR RBS50 firmware<2.5.1.16
NETGEAR RBS50
All of
NETGEAR RBS50Y firmware<2.6.1.40
NETGEAR RBS50Y firmware
All of
NETGEAR WNR2020 Firmware<1.1.0.62
NETGEAR WNR2020 Firmware
NETGEAR D6200B firmware<1.1.00.38
NETGEAR D6200 firmware
NETGEAR D7000v1 firmware<1.0.1.78
NETGEAR D7000 firmware
NETGEAR R6020 firmware<1.0.0.48
NETGEAR R6020 firmware
NETGEAR R6080 firmware<1.0.0.48
NETGEAR R6080 firmware
NETGEAR R6050 firmware<1.0.1.26
NETGEAR R6050 firmware
NETGEAR JR6150 firmware<1.0.1.26
NETGEAR JR6150
NETGEAR R6120 firmware<1.0.0.66
NETGEAR R6120 firmware
NETGEAR R6220 firmware<1.1.0.100
NETGEAR R6220 firmware
NETGEAR R6230 firmware<1.1.0.110
NETGEAR R6230 firmware
NETGEAR R6260 firmware<1.1.0.78
NETGEAR R6260 firmware
NETGEAR R6800 firmware<1.2.0.76
NETGEAR R6800 firmware
NETGEAR R6900v2<1.2.0.76
NETGEAR R6900v2 firmware
Netgear R6700 Firmware<1.2.0.76
NETGEAR R6700v2 firmware
NETGEAR R7450 firmware<1.2.0.76
NETGEAR R7450 firmware
NETGEAR AC2100<1.2.0.76
NETGEAR AC2100 firmware
NETGEAR AC2400 firmware<1.2.0.76
NETGEAR AC2400 firmware
NETGEAR AC2600 firmware<1.2.0.76
NETGEAR AC2600
NETGEAR RBK40<2.5.1.16
NETGEAR RBK40 firmware
NETGEAR CBR40 firmware<2.5.1.16
NETGEAR RBR40 firmware
NETGEAR RBS40 firmware<2.5.1.16
NETGEAR RBS40 firmware
NETGEAR RBK20 Router Firmware<2.5.1.16
NETGEAR RBK20 firmware
NETGEAR RBR20<2.5.1.16
NETGEAR RBR20
NETGEAR RBS20 firmware<2.5.1.16
NETGEAR RBS20 firmware
NETGEAR RBK50 firmware<2.5.1.16
NETGEAR RBK50
NETGEAR RBR50 firmware<2.5.1.16
NETGEAR RBR50 firmware
NETGEAR RBS50 firmware<2.5.1.16
NETGEAR RBS50
NETGEAR RBS50Y firmware<2.6.1.40
NETGEAR RBS50Y firmware
NETGEAR WNR2020 Firmware<1.1.0.62
NETGEAR WNR2020 Firmware

Remedy

https://kb.netgear.com/000064067/Security-Advisory-for-Server-Side-Injection-on-Some-Routers-and-WiFi-Systems-PSV-2019-0141

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Frequently Asked Questions

  • Which NETGEAR devices are affected by server-side injection vulnerability (CVE-2021-45657)?

    NETGEAR D6200, D7000, R6020, R6080, R6050, JR6150, R6120, R6220, R6230, R6260, R6800, R6900v2, R6700v2, R7450, Ac2100, Ac2400, Ac2600, Rbk40, Rbr40, Rbs40, Rbk20, Rbr20, Rbs20, Rbk50, Rbr50, Rbs50, Rbs50y, Wnr2020 devices are affected.

  • What is the severity of the server-side injection vulnerability (CVE-2021-45657)?

    The severity of the vulnerability is rated as high with a CVSS score of 7.8.

  • How can I check if my NETGEAR device is vulnerable to the server-side injection vulnerability (CVE-2021-45657)?

    You can check the NETGEAR advisory (link provided) or contact NETGEAR support for information on affected firmware versions.

  • How do I fix the server-side injection vulnerability (CVE-2021-45657) on my NETGEAR device?

    Update your NETGEAR device firmware to the latest patched version provided by NETGEAR.

  • Where can I find more information about the server-side injection vulnerability (CVE-2021-45657) and its impact on NETGEAR devices?

    You can find more information in the NETGEAR security advisory (link provided).

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203