How severe is CVE-2025-8414?

CVE-2025-8414 has a CVSS 4.0 base score of 9.4, rated critical severity.

Is CVE-2025-8414 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.

How do I fix CVE-2025-8414?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-8414 have an EU (EUVD) identifier?

Yes. CVE-2025-8414 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34896.

When was CVE-2025-8414 published?

CVE-2025-8414 was published on 2025-10-17 and last updated on 2026-06-17.

CVE-2025-8414

CVE-2025-8414 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.4. 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-20.

Key facts

Severity: Critical (CVSS 4.0 base score 9.4)
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34896
Weakness: CWE-20
Published: 2025-10-17
Last modified: 2026-06-17

Description

Due to improper input validation, a buffer overflow vulnerability is present in Zigbee EZSP Host Applications. If the buffer overflows, stack corruption is possible. In certain conditions, this could lead to arbitrary code execution. Access to a network key is required to exploit this vulnerability.

Frequently asked questions

What is CVE-2025-8414?: Due to improper input validation, a buffer overflow vulnerability is present in Zigbee EZSP Host Applications. If the buffer overflows, stack corruption is possible. In certain conditions, this could lead to arbitrary code execution. Access to a network key is required to exploit this vulnerability.
How severe is CVE-2025-8414?: CVE-2025-8414 has a CVSS 4.0 base score of 9.4, rated critical severity.
Is CVE-2025-8414 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.
How do I fix CVE-2025-8414?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-8414 have an EU (EUVD) identifier?: Yes. CVE-2025-8414 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34896.
When was CVE-2025-8414 published?: CVE-2025-8414 was published on 2025-10-17 and last updated on 2026-06-17.

References

https://community.silabs.com/068Vm00000WJZED

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