How severe is CVE-2023-51394?

CVE-2023-51394 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-51394 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51394?

CVE-2023-51394 affects Silabs Emberznet. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51394?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2023-51394 have an EU (EUVD) identifier?

Yes. CVE-2023-51394 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56115.

When was CVE-2023-51394 published?

CVE-2023-51394 was published on 2024-02-23 and last updated on 2026-06-17.

CVE-2023-51394

CVE-2023-51394 is a medium-severity vulnerability in Silabs Emberznet with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56115
Weakness: CWE-476
Affected product: Silabs Emberznet
Published: 2024-02-23
Last modified: 2026-06-17

Description

High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.

Frequently asked questions

What is CVE-2023-51394?: High traffic environments may result in NULL Pointer Dereference vulnerability in Silicon Labs's Ember ZNet SDK before v7.4.0, causing a system crash.
How severe is CVE-2023-51394?: CVE-2023-51394 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-51394 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51394?: CVE-2023-51394 affects Silabs Emberznet. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51394?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51394 have an EU (EUVD) identifier?: Yes. CVE-2023-51394 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56115.
When was CVE-2023-51394 published?: CVE-2023-51394 was published on 2024-02-23 and last updated on 2026-06-17.

References

https://community.silabs.com/068Vm000001NL4u

Affected products (1)

cpe:2.3:a:silabs:emberznet:*:*:*:*:*:*:*:*

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