# CVE-2025-36939

## Summary

- **CVE ID:** CVE-2025-36939
- **Severity:** CRITICAL
- **CVSS Score:** 10 (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)
- **CWE:** N/A
- **Published:** Aug 24, 2026
- **Last Modified:** Aug 24, 2026

## 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.

## Affected Products

- Google — Nest (3.78.518349)

## References

- [CNA](https://support.google.com/product-documentation/answer/17072818?hl=en&ref_topic=12974021&sjid=16276349370796658455-NC)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.23%
- **EPSS Percentile:** 13.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._