CVE-2021-45555

Name: CVE-2021-45555
Creator: NVD / NIST
Published: 2021-12-26T01:15:15.613+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.8/10EPSS 1.76%

Last modified Jun 17, 2026

CVE-2021-45555 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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.. EPSS estimates a 1.76% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.8/10

CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.76%

75.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-77

Affected Software

Vendor	Product	Versions
Netgear	R7900p Firmware	< 1.4.2.84
Netgear	R7960p Firmware	< 1.4.2.84
Netgear	R8000p Firmware	< 1.4.2.84

References

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

Timeline

Published: Dec 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-45555?

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.

How severe is CVE-2021-45555?

CVE-2021-45555 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 1.76% probability of exploitation in the next 30 days.

How do I fix CVE-2021-45555?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-45555?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST