CVE-2025-28256

TOTOLINK A3100r Firmware remote code execution

9.8 CRITICALEPSS 0.97%

Published28 Mar 2025

Description

An issue in TOTOLINK A3100R V4.1.2cu.5247_B20211129 allows a remote attacker to execute arbitrary code via the setWebWlanIdx of the file /lib/cste_modules/wireless.so.

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 A3100r Firmware4.1.2cu.5247_b20211129

Remediation

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

Frequently asked

Is CVE-2025-28256 being actively exploited?

CVE-2025-28256 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.97%.

How severe is CVE-2025-28256?

CVE-2025-28256 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.97% probability of exploitation.

Which products are affected by CVE-2025-28256?

Affected products include TOTOLINK A3100r Firmware.

How do I fix CVE-2025-28256?

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-2025-28256 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.

See how prioritisation works Book a demo

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