---
id: CVE-2025-12131
title: >-
  A truncated 802.15.4 packet can lead to an assert, resulting in a denial of
  service.
summary: >-
  A truncated 802.15.4 packet can lead to an assert, resulting in a denial of
  service.
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-20
  - CWE-617
  - CWE-617
vendor: silabs
product: simplicity_software_development_kit
affected:
  - simplicity_software_development_kit <= 2025.6.2
published: '2026-02-05'
updated: '2026-08-20'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-12131'
references:
  - url: 'https://community.silabs.com/068Vm00000g8dP3'
    label: product-security@silabs.com
tags:
  - nvd
epss: 0.00231
epssPercentile: 0.14252
ingestedAt: '2026-08-20T21:01:35.667Z'
---

## Overview

A truncated 802.15.4 packet can lead to an assert, resulting in a denial of service.

## Affected

- `simplicity_software_development_kit <= 2025.6.2`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.