Is CVE-2023-4489 in the CISA KEV catalog?

No. CVE-2023-4489 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-4489?

CVE-2023-4489 has a CVSS v3 base score of 6.4 (MEDIUM).

What is the EPSS score for CVE-2023-4489?

CVE-2023-4489 has an EPSS score of 0.53% (40th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2023-4489?

No published fix for CVE-2023-4489 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2023-4489

MEDIUM

6.4

CVSS v3

NVD

Description

The first S0 encryption key is generated with an uninitialized PRNG in Z/IP Gateway products running Silicon Labs Z/IP Gateway SDK v7.18.3 and earlier. This makes the first S0 key generated at startup predictable, potentially allowing network key prediction and unauthorized S0 network access.

CWE-1279 CWE-908

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorPhysical

Attack ComplexityHigh

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.53%probability of exploitation in 30 days

40thpercentile

Moderate risk: more likely to be exploited than 40% of all known CVEs.

References

Third-Party Advisory1

github.com

Other references1

siliconlabs.lightning.force.com

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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.