How severe is CVE-2026-4526?

CVE-2026-4526 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-4526 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-4526?

CVE-2026-4526 affects Silabs Emberznet. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-4526?

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

Does CVE-2026-4526 have an EU (EUVD) identifier?

Yes. CVE-2026-4526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39396.

When was CVE-2026-4526 published?

CVE-2026-4526 was published on 2026-06-25.

CVE-2026-4526

CVE-2026-4526 is a medium-severity vulnerability in Silabs Emberznet with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 7.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39396
Weakness: CWE-125
Affected product: Silabs Emberznet
Published: 2026-06-25
Last modified: 2026-06-25

Description

In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.

Frequently asked questions

What is CVE-2026-4526?: In EmberZNet v9.0.2 and earlier, malformed global ZCL messages can trigger out-of-bounds reads in framework parsing logic and terminate the process. These messages must come from a device that has already joined the network, and no information leakage back to the sender was observed.
How severe is CVE-2026-4526?: CVE-2026-4526 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-4526 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-4526?: CVE-2026-4526 affects Silabs Emberznet. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-4526?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4526 have an EU (EUVD) identifier?: Yes. CVE-2026-4526 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39396.
When was CVE-2026-4526 published?: CVE-2026-4526 was published on 2026-06-25.

References

Affected products (1)

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

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