CVE-2025-11385: Tenda AC20 fast_setting_wifi_set sscanf buffer overflow

Published Oct 7, 2025
·
Updated

A vulnerability has been found in Tenda AC20 up to 16.03.08.12. The affected element is the function sscanf of the file /goform/fastsettingwifiset. The manipulation of the argument timeZone leads to buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

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

Oct 7, 2025
CVE Published
via MITRE·09:32 AM
Data Sourced
via MITRE·09:32 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-11385?

CVE-2025-11385 has been assessed as a high severity vulnerability due to the potential for remote exploitation leading to a buffer overflow.

2

How do I fix CVE-2025-11385?

To fix CVE-2025-11385, update the Tenda AC20 firmware to a version newer than 16.03.08.12.

3

What is the impact of CVE-2025-11385?

CVE-2025-11385 can allow an attacker to exploit a buffer overflow vulnerability remotely, which may lead to arbitrary code execution.

4

Who is affected by CVE-2025-11385?

CVE-2025-11385 affects users of the Tenda AC20 router running firmware versions up to 16.03.08.12.

5

Can CVE-2025-11385 be exploited from outside the network?

Yes, CVE-2025-11385 can be exploited remotely, meaning an attacker does not need to be on the same local network.

Contact

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