GoogleCVE-2025-36939

Google Nest: denial of service

Critical10.0CVE-2025-36939 · Published Aug 24, 2026 · updated Sep 23, 2026

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.

Google advisory

Affected versions

Package	Affected	Fixed in
Nest Product	<= 3.78.518349	No fix yet

Details and references

CVSS 4.0: 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:X/V:X/RE:X/U:X
Severity from: the vendor (its own CVE record or advisory)
Weakness: CWE-121

More Google advisories

All Google

Date	Advisory	Severity	Fixed in
Aug 25	Google Chrome: information disclosure Medium4.3Aug 25 CVE-2026-78896152.0.7977.65	Medium4.3	152.0.7977.65
Aug 25	Google Chrome: information disclosure Medium4.3Aug 25 CVE-2026-78895152.0.7977.65	Medium4.3	152.0.7977.65
Aug 25	Google Chrome: race condition Low3.1Aug 25 CVE-2026-78894152.0.7977.65	Low3.1	152.0.7977.65
Aug 25	Google Chrome: information disclosure Medium6.5Aug 25 CVE-2026-78893152.0.7977.65	Medium6.5	152.0.7977.65
Aug 25	Google Chrome: improper authorization High7.1Aug 25 CVE-2026-78892152.0.7977.65	High7.1	152.0.7977.65
Aug 24	Google Android: use after free High8.8Aug 24 CVE-2025-36940No fix yet	High8.8	No fix yet

Affected versions

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