CVE-2021-28152 describes an undocumented superuser shell accessible via Telnet on port 5188 using default credentials (root:superzxmn) in Hongdian H8922 3.0.5 devices. This vulnerability is rated as Critical (CVSS 9.8), indicating a severe risk with network-based exploitation, low attack complexity, and high impact on confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the high FAUCET Risk Score of 97/100 highlights its significant potential for compromise.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
3.0.5CPE matchmatch criteria | cpe:2.3:o:hongdian:h8922_firmware:3.0.5:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.