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CVE-2026-109157

TRENDnet TEW-432BRP buffer overflow

9.9 CRITICAL
  1. Published13 Oct 2026

Description

A vulnerability was found in TRENDnet TEW-432BRP 3.10B20. Affected by this vulnerability is the function formTcpipSetup of the file /goform/formTcpipSetup. Performing a manipulation of the argument Name results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." This vulnerability only affects products that are no longer supported by the maintainer.

CVSS 3.1 breakdown

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

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-2026-109157 being actively exploited?

CVE-2026-109157 is not in the CISA KEV catalog.

How severe is CVE-2026-109157?

CVE-2026-109157 has a CVSS 3.1 base score of 9.9, rated critical.

How do I fix CVE-2026-109157?

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-2026-109157 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.