---
id: CVE-2025-36939
title: Multiple vulnerabilities exist in OpenThread's handling of MLE packets
summary: >-
  Multiple vulnerabilities exist in OpenThread's handling of MLE packets. An
  authenticated attacker on the same Thread network could send specially crafted
  packets to cause a denial of service. These issues include triggerable
  assertion fa…
severity: medium
cvss: 5.7
cvssVector: 'CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-121
vendor: google
product: nest_wifi_router_firmware
affected:
  - nest_wifi_router_firmware = 3.78.518349
  - nest_wifi_point_firmware = 3.78.518349
  - nest_wifi_pro_firmware = 3.78.518349
published: '2026-08-24'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T16:04:59.817'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-36939'
references:
  - url: >-
      https://support.google.com/product-documentation/answer/17072818?hl=en&ref_topic=12974021&sjid=16276349370796658455-NC
    label: dsap-vuln-management@google.com
tags:
  - nvd
epss: 0.00214
epssPercentile: 0.10401
ingestedAt: '2026-09-23T16:27:22.631Z'
---

## Overview

Multiple vulnerabilities exist in OpenThread's handling of MLE packets. An authenticated attacker on the same Thread network could send specially crafted packets to cause a denial of service. These issues include triggerable assertion failures and a stack-based buffer overflow.

## Affected

- `nest_wifi_router_firmware = 3.78.518349`
- `nest_wifi_point_firmware = 3.78.518349`
- `nest_wifi_pro_firmware = 3.78.518349`

## Remediation

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