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HIGH

CVE-2021-30028

CVSS v3

7.2

HIGH

EPSS Score

1.4 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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.

Technical details

Published
2022-05-20

Frequently asked questions

What is 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.

Is CVE-2021-30028 actively exploited?

Active exploitation of CVE-2021-30028 has not been confirmed. Its EPSS score was 1.4% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-30028?

CVE-2021-30028 has a CVSS v3 base score of 7.2 (HIGH severity).

Is CVE-2021-30028 affecting your environment?

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