What is CVE-2024-6351?

CVE-2024-6351 is a medium-severity vulnerability in Silabs.com Sisdk, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.3/10. Published 2025-01-28.

How severe is CVE-2024-6351?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Buffer overflow in Silabs.com Sisdk

CVE-2024-6351

A malformed packet can cause a buffer overflow in the NWK/APS layer of the Ember ZNet stack and lead to an assert

Vulnerability class: Buffer Overflow

Published 2025-01-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (14.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Silabs.com Sisdk — versions 0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

github.com/SiliconLabs/simplicity_sdk/releases (release-notes)
community.silabs.com/069Vm00000HtvDgIAJ (vendor-advisory, permissions-required)

Frequently asked questions

What is CVE-2024-6351?: CVE-2024-6351 is a medium-severity vulnerability in Silabs.com Sisdk, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.3/10. Published 2025-01-28.
How severe is CVE-2024-6351?: Medium severity. CVSS v3 base score is 4.3 out of 10.