CVE-2025-14656: Tenda AC20 openSchedWifi httpd buffer overflow

Published Dec 14, 2025
·
Updated

A weakness has been identified in Tenda AC20 16.03.08.12. This affects the function httpd of the file /goform/openSchedWifi. Executing a manipulation of the argument schedStartTime/schedEndTime can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks.

Affected Software

3 affected components
Tenda AC20=16.03.08.12
All of the following
Tenda Ac20 Firmware=16.03.08.12
Tenda AC20

Event History

Dec 14, 2025
CVE Published
via MITRE·11:02 AM
Data Sourced
via MITRE·11:02 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-14656?

CVE-2025-14656 is considered a high severity vulnerability due to the potential for remote exploitation leading to buffer overflow.

2

How do I fix CVE-2025-14656?

To fix CVE-2025-14656, users should update the Tenda AC20 firmware to the latest available version.

3

What is the impact of CVE-2025-14656?

The impact of CVE-2025-14656 includes potential denial of service or remote code execution through buffer overflow.

4

Who is affected by CVE-2025-14656?

CVE-2025-14656 affects all Tenda AC20 devices running firmware version 16.03.08.12.

5

Can CVE-2025-14656 be exploited remotely?

Yes, CVE-2025-14656 can be exploited remotely by manipulating specific arguments in the affected httpd function.

Contact

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