CVE-2021-28913 json
BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers access to /webif/SecurityModule to validate the so call…
published 2021-09-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-15566
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.8%
- EPSS 1.8% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers access to /webif/SecurityModule to validate the so called and hard coded unique 'eibPort String' which acts as the root SSH key passphrase. This is usable and part of an attack chain to gain SSH root access.
Patch / fix
- bab-technologie eibport_firmware 3.9.1
Exploit prediction
1.84% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
psytester.github.io
/CVE-2021-28913
third-party-advisory
Sources
- CVE List CVE-2021-28913
- NVD CVE-2021-28913
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