CVE-2021-28909

9.8 criticalEPSS 1.4%

Critical (9.8) in bab-technologie eibport firmware. EPSS 1.4% chance of exploitation in the next 30 days.

BAB TECHNOLOGIE GmbH eibPort V3 prior version 3.9.1 allow unauthenticated attackers to access uncontrolled the login service at /webif/SecurityModule in a brute force attack. The password could be weak and default username is known as 'admin'. This is usable and part of an attack chain to gain SSH root access.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
CWE: CWE-307
Published: 2021-09-09
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

bab-technologie:eibport_firmware

References

https://psytester.github.io/CVE-2021-28909
https://psytester.github.io/CVE-2021-28909

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