What is CVE-2021-30028?

CVE-2021-30028 is a high-severity vulnerability in Sooteway Wi-Fi Range Extender Project, classified under Improper Authentication. CVSS score: 7.2/10. Published 2022-05-20.

How severe is CVE-2021-30028?

High severity. CVSS v3 base score is 7.2 out of 10.

Auth bypass in Sooteway Wi-Fi Range Extender Project

CVE-2021-30028

SOOTEWAY Wi-Fi Range Extender v1.5 was discovered to use default credentials (the admin password for the admin account) to access the TELNET service, allowing attackers to erase/read/write the firmware remotely.

Vulnerability class: Broken Authentication

Published 2022-05-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (71.7th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

Sooteway Wi-Fi Range Extender Project — versions 1.5

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2… (Exploit, Third Party Advisory)
www.amazon.it/SOOTEWAY-Ripetitore-Extender-Wireless-Wmplificatore/dp/B08G55T46P (Product)

Frequently asked questions

What is CVE-2021-30028?: CVE-2021-30028 is a high-severity vulnerability in Sooteway Wi-Fi Range Extender Project, classified under Improper Authentication. CVSS score: 7.2/10. Published 2022-05-20.
How severe is CVE-2021-30028?: High severity. CVSS v3 base score is 7.2 out of 10.