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HIGH

CVE-2026-86166

CVSS v3

8.8

HIGH

EPSS Score

0.9 %

exploit probability, as of 2026-09-28

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formWanRedirect of the file /boaform/formWanRedirect of the component Boa Web Server. Executing a manipulation of the argument if can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Technical details

Published
2026-09-06
Last Modified
2026-09-06

Frequently asked questions

What is CVE-2026-86166?

A vulnerability was determined in Tenda HG10 300001138. This issue affects the function formWanRedirect of the file /boaform/formWanRedirect of the component Boa Web Server. Executing a manipulation of the argument if can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

Is CVE-2026-86166 actively exploited?

Active exploitation of CVE-2026-86166 has not been confirmed. Its EPSS score was 0.9% on 2026-09-28, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-86166?

CVE-2026-86166 has a CVSS v3 base score of 8.8 (HIGH severity).

Is CVE-2026-86166 affecting your environment?

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