CVE-2025-55606 Memory corruption in n/a

Critical 9.8 Published Updated

A buffer overflow in the Tenda AX3 router allows attackers to execute arbitrary code via the serverName parameter.

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-2025-55606?

CVE-2025-55606 is a critical memory corruption vulnerability in Tenda Ax3 Firmware, published on 22 Aug 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tenda AX3 V16.03.12.10_CN is vulnerable to Buffer Overflow in the fromAdvSetMacMtuWan function via the serverName parameter.

Weakness: CWE-120

Which versions are affected by CVE-2025-55606?

It affects 1 product.

Products include Tenda Ax3 Firmware.

How do I fix CVE-2025-55606?

No fix has been published for CVE-2025-55606 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-2025-55606 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-55606 exists.

All Tenda Ax3 Firmware vulnerabilities

Sources

Also known as GHSA-678h-9hcr-jq5h.

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