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10.0
CVE-2025-36939: OpenThread can be crashed by malicious network packets
CVE-2025-36939 · published 2 months ago
Summary
If someone with permission on your Thread network sends specially crafted messages, OpenThread may stop working, leading to a denial of service. The problem is caused by errors in how OpenThread processes certain network packets, which can trigger crashes. Update OpenThread to the latest version and restrict network access to trusted devices to protect your system.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| nest | 3.78.518349 | |
| nest_wifi_router_firmware |
3.78.518349 cpe:2.3:o:google:nest_wifi_router_firmware:3.78.518349:*:*:*:*:*:*:* |
|
| nest_wifi_point_firmware |
3.78.518349 cpe:2.3:o:google:nest_wifi_point_firmware:3.78.518349:*:*:*:*:*:*:* |
|
| nest_wifi_pro_firmware |
3.78.518349 cpe:2.3:o:google:nest_wifi_pro_firmware:3.78.518349:*:*:*:*:*:*:* |
Original advisory text
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...
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.
References
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Severity
10.0
Critical
Type
CWE-121Stack-based Buffer Overflow
Timeline
Published24 Aug 2026
Updated4 Nov 2026
First seen24 Aug 2026
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