CVE-2025-12209: Tenda O3 setDhcpConfig GetValue stack-based overflow

Published Oct 27, 2025
·
Updated

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.

Affected Software

3 affected components
Tenda O3
All of the following
Tenda O3 Firmware1.0.0.10\(2478\)
Tenda O3=2.0

Event History

Oct 27, 2025
CVE Published
via MITRE·03:02 AM
Data Sourced
via MITRE·03:02 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-12209?

CVE-2025-12209 is classified as a high severity vulnerability due to the potential for a stack-based buffer overflow.

2

How do I fix CVE-2025-12209?

To fix CVE-2025-12209, update the Tenda O3 device firmware to the latest version provided by the manufacturer.

3

What impact does CVE-2025-12209 have on Tenda O3 devices?

CVE-2025-12209 can enable remote attackers to exploit a buffer overflow, potentially allowing them to execute arbitrary code.

4

Is CVE-2025-12209 exploitable remotely?

Yes, CVE-2025-12209 can be exploited remotely without requiring physical access to the device.

5

What software versions are affected by CVE-2025-12209?

CVE-2025-12209 affects Tenda O3 version 1.0.0.10(2478) specifically.

Contact

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