VULNERABILITY INTELLIGENCE
CVE-2021-28152
CVSS score9.8 CRITICAL
EPSS probability5.18%
CISA KEVNot currently listed
Published2021-05-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
Hongdian H8922 3.0.5 devices have an undocumented feature that allows access to a shell as a superuser. To connect, the telnet service is used on port 5188 with the default credentials of root:superzxmn.
Weakness classification
- nvd@nist.gov: CWE-287
Primary references
- cve@mitre.org — Product, Vendor Advisory
- cve@mitre.org — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Product, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory