CVE-2021-28911 describes an unauthenticated access vulnerability in BAB TECHNOLOGIE GmbH eibPort V3 devices prior to version 3.9.1. Attackers can access the /tmp directory, exposing sensitive data like the device serial number. This information can then be used to calculate a loginId for brute-force attacks against the BMX interface, ultimately leading to SSH root access. This vulnerability carries a critical CVSS score of 9.8, indicating a severe risk. It is easily exploitable over the network with low attack complexity and no user interaction required, allowing for complete compromise of confidentiality, integrity, and availability. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness at this time.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 3.9.1CPE matchmatch criteria | cpe:2.3:o:bab-technologie:eibport_firmware:*:*:*:*:*:*:*:* |
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.