CVE-2025-3461 | ON Semiconductor Quantenna Telnet Missing Authentication

Exp

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). 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.

Published: 2025-06-08 Last update: 2026-01-13 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-3461 is rated High Exploit Risk (70.5/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 0.31%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-3461

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-3461

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-04 0.06% 0.31% +0.25%
2 2025-06-14 0.05% 0.06% +0.01%
3 2025-06-09 — 0.05% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-3461

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.2 [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2025-3461

Affected software / configurations for CVE-2025-3461

Vendor Product Version Raw CPE
onsemi qhs710_firmware — cpe:2.3:o:onsemi:qhs710_firmware:-:*:*:*:*:*:*:*
onsemi qsr10ga_firmware — cpe:2.3:o:onsemi:qsr10ga_firmware:-:*:*:*:*:*:*:*
onsemi qsr10gu_firmware — cpe:2.3:o:onsemi:qsr10gu_firmware:-:*:*:*:*:*:*:*
onsemi qv840_firmware — cpe:2.3:o:onsemi:qv840_firmware:-:*:*:*:*:*:*:*
onsemi qv840c_firmware — cpe:2.3:o:onsemi:qv840c_firmware:-:*:*:*:*:*:*:*
onsemi qv860_firmware — cpe:2.3:o:onsemi:qv860_firmware:-:*:*:*:*:*:*:*
onsemi qv940_firmware — cpe:2.3:o:onsemi:qv940_firmware:-:*:*:*:*:*:*:*
onsemi qv942c_firmware — cpe:2.3:o:onsemi:qv942c_firmware:-:*:*:*:*:*:*:*
onsemi qv952c_firmware — cpe:2.3:o:onsemi:qv952c_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax2-s5_firmware — cpe:2.3:o:onsemi:qcs-ax2-s5_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax3-a12_firmware — cpe:2.3:o:onsemi:qcs-ax3-a12_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax3-t12_firmware — cpe:2.3:o:onsemi:qcs-ax3-t12_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax3-t8_firmware — cpe:2.3:o:onsemi:qcs-ax3-t8_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax3-s5_firmware — cpe:2.3:o:onsemi:qcs-ax3-s5_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax2-a12_firmware — cpe:2.3:o:onsemi:qcs-ax2-a12_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax2-t12_firmware — cpe:2.3:o:onsemi:qcs-ax2-t12_firmware:-:*:*:*:*:*:*:*
onsemi qcs-ax2-t8_firmware — cpe:2.3:o:onsemi:qcs-ax2-t8_firmware:-:*:*:*:*:*:*:*
onsemi qd840_firmware — cpe:2.3:o:onsemi:qd840_firmware:-:*:*:*:*:*:*:*

References for CVE-2025-3461

cvelogic Threat Intelligence