CVE-2021-30028

HIGHNVD 7.27.2—

7.2

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.

CVSS v3: 7.2
EG Score: 7.2(medium)
EPSS: 59.9%
KEV: Not listed

Published

May 20, 2022

Last Modified

November 21, 2024

References (4)

cve@mitrehttps://blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2990
cve@mitrehttps://www.amazon.it/SOOTEWAY-Ripetitore-Extender-Wireless-Wmplificatore/dp/B08G55T46P
af854a3a-2127-422b-91ae-364da2661108https://blog-ssh3ll.medium.com/acexy-wireless-n-wifi-repeater-vulnerabilities-8bd5d14a2990
af854a3a-2127-422b-91ae-364da2661108https://www.amazon.it/SOOTEWAY-Ripetitore-Extender-Wireless-Wmplificatore/dp/B08G55T46P

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-25 21:48 UTCEG score recompute
2026-05-25 21:48 UTCGHSA enrichment
2026-05-25 21:16 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-30028?

CVE-2021-30028 is a high vulnerability published on May 20, 2022. 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.

When was CVE-2021-30028 disclosed?

CVE-2021-30028 was first published in the National Vulnerability Database on May 20, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-30028 actively exploited?

CVE-2021-30028 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 59.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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

How do I remediate CVE-2021-30028?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30028, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-30028

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-30028?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (4)

Frequently asked(5)

Related CVEs(same CWE)