What is CVE-2021-46007?

CVE-2021-46007 is a critical-severity vulnerability in Totolink Ar3100r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-30.

How severe is CVE-2021-46007?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Totolink Ar3100r

CVE-2021-46007

totolink a3100r V5.9c.4577 is vulnerable to os command injection. The backend of a page is executing the "ping" command, and the input field does not adequately filter special symbols. This can lead to command injection attacks.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-03-30 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.026 (84.7th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.026 · newest: 0.026 · change: 0.000

Affected products

Totolink Ar3100r
Totolink Ar3100r Firmware — versions 5.9c.4577

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
hackmd.io/t_nRWxS2Q2O7GV2E5BhQMg (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-46007?: CVE-2021-46007 is a critical-severity vulnerability in Totolink Ar3100r, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-03-30.
How severe is CVE-2021-46007?: Critical severity. CVSS v3 base score is 9.8 out of 10.