CVE-2025-3461: ON Semiconductor Quantenna Telnet Missing Authentication
Description
The Quantenna Wi-Fi chips ship with an unauthenticated telnet interface by default. This is an instance of CWE-306, "Missing Authentication for Critical Function," and is estimated as a CVSS 9.1 ( CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) https://www.first.org/cvss/calculator/3-1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N) .
This issue affects Quantenna Wi-Fi chipset through version 8.0.0.28 of the latest SDK, and appears to be unpatched at the time of this CVE record's first publishing, though the vendor has released a best practices guide for implementors of this chipset.
Classification
CVE ID: CVE-2025-3461
CVSS Base Severity: CRITICAL
CVSS Base Score: 9.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Problem Types
CWE-306 Missing Authentication for Critical FunctionAffected Products
Vendor: ON Semiconductor
Product: Quantenna Wi-Fi chipset
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.06% (probability of being exploited)
EPSS Percentile: 17.65% (scored less or equal to compared to others)
EPSS Date: 2025-06-27 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2025-3461https://takeonme.org/cves/cve-2025-3461/
https://community.onsemi.com/s/article/QCS-Quantenna-Wi-Fi-product-support-and-security-best-practices