What is CVE-2021-45625?

CVE-2021-45625 is a critical-severity vulnerability in NETGEAR R6900p, classified under Command Injection. CVSS score: 9.6/10. Published 2021-12-26.

How severe is CVE-2021-45625?

Critical severity. CVSS v3 base score is 9.6 out of 10.

RCE in NETGEAR R6900p

CVE-2021-45625

Certain NETGEAR devices are affected by command injection by an unauthenticated attacker. This affects XR300 before 1.0.3.68, R7000P before 1.3.3.140, and R6900P before 1.3.3.140.

Vulnerability class: Command Injection (OS Command Injection)

Published 2021-12-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (75.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 75.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-77 — Command Injection

References

kb.netgear.com/000064489/Security-Advisory-for-Pre-Authentication-Command-Injec… (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-45625?: CVE-2021-45625 is a critical-severity vulnerability in NETGEAR R6900p, classified under Command Injection. CVSS score: 9.6/10. Published 2021-12-26.
How severe is CVE-2021-45625?: Critical severity. CVSS v3 base score is 9.6 out of 10.