CVE-2021-28152
CRITICAL
9.8
CVSS Score
Published: May 6, 2021 at 03:11 PM UTC
Updated: June 17, 2026 at 03:45 AM UTC
2 products affected across 1 vendorH8922 FirmwareH8922
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Severity
CRITICAL9.8
Exploit prediction
EPSS 5%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
H8922· Hongdiandevice
80%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCProductVendor Advisory
Source: [email protected]
http://en.hongdian.com/Products/Details/H8922x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://ssd-disclosure.com/ssd-advisory-hongdian-h8922-multiple-vulnerabilities/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-287
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