What is CVE-2022-35491?

CVE-2022-35491 is a critical-severity vulnerability in Totolink A3002ru, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2022-08-10.

How severe is CVE-2022-35491?

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

Vulnerability in Totolink A3002ru

CVE-2022-35491

TOTOLINK A3002RU V3.0.0-B20220304.1804 has a hardcoded password for root in /etc/shadow.sample.

Published 2022-08-10 · last modified 2026-06-17.

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: 0.008 (55.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Totolink A3002ru
Totolink A3002ru Firmware — versions 3.0.0-b20220304.1804

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

github.com/1337536723/iot/blob/main/totolink/A3002RU.md (Third Party Advisory)

Frequently asked questions

What is CVE-2022-35491?: CVE-2022-35491 is a critical-severity vulnerability in Totolink A3002ru, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2022-08-10.
How severe is CVE-2022-35491?: Critical severity. CVSS v3 base score is 9.8 out of 10.