CVE-2025-25343 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the Tenda AC6 router firmware allows attackers to execute arbitrary code via the formexeCommand function.

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

What is CVE-2025-25343?

CVE-2025-25343 is a critical memory corruption vulnerability in Tenda Ac6 Firmware, published on 12 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AC6 V15.03.05.16 firmware has a buffer overflow vulnerability in the formexeCommand function.

Weakness: CWE-120

Which versions are affected by CVE-2025-25343?

It affects 1 product.

Products include Tenda Ac6 Firmware.

How do I fix CVE-2025-25343?

No fix has been published for CVE-2025-25343 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-2025-25343 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-25343 exists.

All Tenda Ac6 Firmware vulnerabilities

Sources

Also known as GHSA-7v4m-vwhv-fmx7.

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