Buffer overflow in Google Nest
CVE-2025-36939
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.002 (10.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 11th percentile — 10.7% 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
- Google Nest — versions 3.78.518349
- Google Nest Wifi Point Firmware — versions 3.78.518349
- Google Nest Wifi Pro Firmware — versions 3.78.518349
- Google Nest Wifi Router Firmware — versions 3.78.518349
Weakness classification (CWE)
References
- support.google.com/product-documentation/answer/17072818 (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-36939?
- CVE-2025-36939 is a medium-severity vulnerability in Google Nest, classified under Stack-based Buffer Overflow. CVSS score: 5.7/10. Published 2026-08-24.
- How severe is CVE-2025-36939?
- Medium severity. CVSS v3 base score is 5.7 out of 10.