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Vulnerability record · CVE-2025-36939 · published 24 August 2026

CVE-2025-36939: Google nest wifi router firmware stack-based buffer overflow vulnerability

Google · Nest Wifi Router Firmware

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.

10.0 CVSS 4.0 Critical EPSS 0.21% · top 89.5% CWE-121 · Stack-based buffer overflow
10.0CVSS 4.0 base score
0.21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
1References
23 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.google.com/product-documentation/answer/17072818?hl=en&ref_topic=12974021&sjid=16276349370796658455-NC Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-36939), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.