CVE-2021-45555

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% 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-77

Description

Certain NETGEAR devices are affected by command injection by an authenticated user. This affects R7900P before 1.4.2.84, R7960P before 1.4.2.84, and R8000P before 1.4.2.84.

Affected products

NETGEAR R7900P Firmware: before 1.4.2.84 — fixed in 1.4.2.84
NETGEAR R7960P Firmware: before 1.4.2.84 — fixed in 1.4.2.84
NETGEAR R8000P Firmware: before 1.4.2.84 — fixed in 1.4.2.84

How to fix

Upgrade to a fixed version: NETGEAR R7900P Firmware 1.4.2.84; NETGEAR R7960P Firmware 1.4.2.84; NETGEAR R8000P Firmware 1.4.2.84. Check the vendor advisory for mitigations.

References

https://kb.netgear.com/000064497/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2020-0480
https://kb.netgear.com/000064497/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-PSV-2020-0480

Get alerted when CVE-2021-45555 or the next vulnerability affects your stack