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CVE-2025-51390

TOTOLINK N600r Firmware command injection

9.8 CRITICALPublic exploitEPSS 1.81%
  1. Published4 Aug 2025

Description

TOTOLINK N600R V4.3.0cu.7647_B20210106 was discovered to contain a command injection vulnerability via the pin parameter in the setWiFiWpsConfig function.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

TOTOLINK N600r Firmware4.3.0cu.7647_b20210106

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

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Frequently asked

Is CVE-2025-51390 being actively exploited?

CVE-2025-51390 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.81%.

How severe is CVE-2025-51390?

CVE-2025-51390 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.81% probability of exploitation.

Which products are affected by CVE-2025-51390?

Affected products include TOTOLINK N600r Firmware.

How do I fix CVE-2025-51390?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-51390 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.