Is CVE-2021-28912 in the CISA KEV catalog?

No. CVE-2021-28912 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28912?

CVE-2021-28912 has a CVSS v3 base score of 7.2 (HIGH).

What is the EPSS score for CVE-2021-28912?

CVE-2021-28912 has an EPSS score of 1.19% (64th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28912?

Upgrade eibport firmware to 3.9.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-28912

HIGH

7.2

CVSS v3

NVD

Description

BAB TECHNOLOGIE GmbH eibPort V3. Each device has its own unique hard coded and weak root SSH key passphrase known as 'eibPort string'. This is usable and the final part of an attack chain to gain SSH root access.

CWE-521 CWE-798Hard-coded Credentials

How to fix

Remediation Available

eibport firmwareNVD

Affected:< 3.9.1Fixed in:3.9.1CVE-2021-28912derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.19%probability of exploitation in 30 days

64thpercentile

Moderate risk: more likely to be exploited than 64% of all known CVEs.

References

Third-Party Advisory1

psytester.github.io

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.