What’s Vulnerable › Vulnerabilities

CVE-2021-38520

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% 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 authenticated user. This affects R6400 before 1.0.1.52, R6400v2 before 1.0.4.84, R6700v3 before 1.0.4.84, R6700v2 before 1.2.0.62, R6900v2 before 1.2.0.62, and R7000P before 1.3.2.124.

Affected products

• NETGEAR R6400 Firmware: before 1.0.1.52; before 1.0.4.84 — fixed in 1.0.1.52, 1.0.4.84
• NETGEAR R6700: before 1.2.0.62; before 1.0.4.84 — fixed in 1.0.4.84, 1.2.0.62
• NETGEAR R6900 Firmware: before 1.2.0.62 — fixed in 1.2.0.62
• NETGEAR R7000P: before 1.3.2.124 — fixed in 1.3.2.124

How to fix

Upgrade to a fixed version: NETGEAR R6400 Firmware 1.0.1.52, 1.0.4.84; NETGEAR R6700 1.0.4.84, 1.2.0.62; NETGEAR R6900 Firmware 1.2.0.62; NETGEAR R7000P 1.3.2.124. Check the vendor advisory for mitigations.

References

• https://kb.netgear.com/000063763/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2018-0565
• https://kb.netgear.com/000063763/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2018-0565

Get alerted when CVE-2021-38520 or the next vulnerability affects your stack