CVE-2018-21221: Buffer Overflow

Published Apr 28, 2020
·
Updated

Certain NETGEAR devices are affected by a buffer overflow by an unauthenticated attacker. This affects D3600 before 1.0.0.67, D6000 before 1.0.0.67, and R9000 before 1.0.2.52.

Affected Software

6 affected components
Netgear R9000 Firmware<1.0.2.52
Netgear R9000
Netgear D6000 Firmware<1.0.0.67
Netgear D6000
Netgear D3600 Firmware<1.0.0.67
Netgear D3600

Event History

Apr 28, 2020
CVE Published
via MITRE·04:23 PM
Data Sourced
via MITRE·04:23 PM
DescriptionSeverity
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is CVE-2018-21221?

CVE-2018-21221 is a vulnerability in certain NETGEAR devices that allows an unauthenticated attacker to trigger a buffer overflow.

2

Which devices are affected by CVE-2018-21221?

CVE-2018-21221 affects NETGEAR D3600 (firmware version up to 1.0.0.67), D6000 (firmware version up to 1.0.0.67), and R9000 (firmware version up to 1.0.2.52).

3

What is the severity of CVE-2018-21221?

CVE-2018-21221 has a severity rating of 8.8, which is classified as high.

4

How can an attacker exploit CVE-2018-21221?

An unauthenticated attacker can exploit CVE-2018-21221 by triggering a buffer overflow, potentially leading to remote code execution.

5

Is there a fix for CVE-2018-21221?

Yes, the affected NETGEAR devices can be fixed by updating to firmware versions that are not vulnerable.

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.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203