CVE-2025-36939 Memory corruption in Nest
An authenticated attacker on the Thread network can cause denial of service via crafted MLE packets triggering buffer overflows and assertions in OpenThread.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-36939?
CVE-2025-36939 is a critical memory corruption vulnerability in Google Nest, published on 24 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-121
Which versions are affected by CVE-2025-36939?
It affects 3 products.
Products include Google Nest Wifi Point Firmware, Google Nest Wifi Pro Firmware, Google Nest Wifi Router Firmware.
How do I fix CVE-2025-36939?
No fix has been published for CVE-2025-36939 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-36939 being exploited?
There is no known exploitation of CVE-2025-36939 in the wild and no public exploit code.
Other vulnerabilities in Google Nest
Sources
Also known as GHSA-x6v7-jjvq-5rr9.