What’s Vulnerable › Vulnerabilities

CVE-2021-38529

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-08-11 · updated 2026-06-17
• Weakness: CWE-77

Description

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects D7800 before 1.0.1.56, R7800 before 1.0.2.68, R8900 before 1.0.4.26, and R9000 before 1.0.4.26.

Affected products

• NETGEAR D7800 Firmware: before 1.0.1.56 — fixed in 1.0.1.56
• NETGEAR R7800 Firmware: before 1.0.2.68 — fixed in 1.0.2.68
• NETGEAR R8900 Firmware: before 1.0.4.26 — fixed in 1.0.4.26
• NETGEAR R9000 Firmware: before 1.0.4.26 — fixed in 1.0.4.26

How to fix

Upgrade to a fixed version: NETGEAR D7800 Firmware 1.0.1.56; NETGEAR R7800 Firmware 1.0.2.68; NETGEAR R8900 Firmware 1.0.4.26; NETGEAR R9000 Firmware 1.0.4.26. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000063765/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2018-0616
• https://kb.netgear.com/000063765/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2018-0616

Get alerted when CVE-2021-38529 or the next vulnerability affects your stack