Stack-based buffer overflow in Google Nest
Priority MEDIUM 42CWE-121Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Nest | 3.78.518349 | — | No fix listed | CNA |
- Nest VendorGoogle Affected 3.78.518349 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:google:nest_wifi_router_firmware:3.78.518349:*:*:*:*:*:*:* | 3.78.518349 | Vulnerable | |
| cpe:2.3:h:google:nest_wifi_router:*:*:*:*:*:*:*:* | all versions | Running on | |
| cpe:2.3:o:google:nest_wifi_point_firmware:3.78.518349:*:*:*:*:*:*:* | 3.78.518349 | Vulnerable | |
| cpe:2.3:h:google:nest_wifi_point:*:*:*:*:*:*:*:* | all versions | Running on | |
| cpe:2.3:o:google:nest_wifi_pro_firmware:3.78.518349:*:*:*:*:*:*:* | 3.78.518349 | Vulnerable | |
| cpe:2.3:h:google:nest_wifi_pro:*:*:*:*:*:*:*:* | all versions | Running on |
- cpe:2.3:o:google:nest_wifi_router_firmware:3.78.518349:*:*:*:*:*:*:* Versions 3.78.518349 Vulnerable ·Google
- cpe:2.3:h:google:nest_wifi_router:*:*:*:*:*:*:*:* Versions all versions Running on ·Google
- cpe:2.3:o:google:nest_wifi_point_firmware:3.78.518349:*:*:*:*:*:*:* Versions 3.78.518349 Vulnerable ·Google
- cpe:2.3:h:google:nest_wifi_point:*:*:*:*:*:*:*:* Versions all versions Running on ·Google
- cpe:2.3:o:google:nest_wifi_pro_firmware:3.78.518349:*:*:*:*:*:*:* Versions 3.78.518349 Vulnerable ·Google
- cpe:2.3:h:google:nest_wifi_pro:*:*:*:*:*:*:*:* Versions all versions Running on ·Google
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-36939
- 2026-10-03 Alias added: GHSA-x6v7-jjvq-5rr9
References
More Google Nest Wifi Point Firmware vulnerabilities
- TI-2024-14625 Unchecked length in Trusted Application on Google Nest Wifi Pro, leading to out of bounds read CVSS 3.1CRITICAL 10.0
- TI-2023-02455 Authentication Bypass in OpenThread Boarder Router devices CVSS 3.1HIGH 8.8
- TI-2024-14634 U-Boot environment is read from unauthenticated partition. CVSS 3.1MEDIUM 5.3
Sources
- CVE-2025-36939 · CVE Program
- CVE-2025-36939 · NVD
- FIRST EPSS
- GHSA-x6v7-jjvq-5rr9 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences