CVE-2025-28138

TOTOLINK A800r Firmware vulnerability

9.8 CRITICALEPSS 1.15%

Published27 Mar 2025

Description

The TOTOLINK A800R V4.1.2cu.5137_B20200730 were found to contain a pre-auth remote command execution vulnerability in the setNoticeCfg function through the NoticeUrl parameter.

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 A800r Firmware4.1.2cu.5137_b20200730

Remediation

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

Frequently asked

Is CVE-2025-28138 being actively exploited?

CVE-2025-28138 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.15%.

How severe is CVE-2025-28138?

CVE-2025-28138 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.15% probability of exploitation.

Which products are affected by CVE-2025-28138?

Affected products include TOTOLINK A800r Firmware.

How do I fix CVE-2025-28138?

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-2025-28138 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.