CVE-2025-9299 Tenda M3 getMasterPassengerAnalyseData formGetMasterPassengerAnalyseData stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda M3 router via the Time argument, potentially leading to code execution or denial of service.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-9299?

CVE-2025-9299 is a high-severity memory corruption vulnerability in Tenda M3, published on 21 Aug 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been found in Tenda M3 1.0.0.12. Affected by this vulnerability is the function formGetMasterPassengerAnalyseData of the file /goform/getMasterPassengerAnalyseData. The manipulation of the argument Time leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-9299?

It affects 1 product.

Products include Tenda M3 Firmware.

How do I fix CVE-2025-9299?

No fix has been published for CVE-2025-9299 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-9299 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-9299 exists.

Sources

Also known as GHSA-7fc8-55hr-pvwj.

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