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HIGH

CVE-2025-12209

CVSS v3

8.8

HIGH

EPSS Score

1.0 %

exploit probability, as of 2026-09-27

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

Technical details

Published
2025-10-27

Frequently asked questions

What is CVE-2025-12209?

A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

Is CVE-2025-12209 actively exploited?

Active exploitation of CVE-2025-12209 has not been confirmed. Its EPSS score was 1.0% on 2026-09-27, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-12209?

CVE-2025-12209 has a CVSS v3 base score of 8.8 (HIGH severity).

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