CVE-2025-11526 Tenda AC7 WifiMacFilterSet stack-based overflow

High 8.7 Published Updated

Remote attackers can trigger a stack-based buffer overflow in the Tenda AC7 router via the WifiMacFilterSet interface, potentially leading to code execution or service disruption.

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-2025-11526?

CVE-2025-11526 is a high-severity memory corruption vulnerability in Tenda Ac7 Firmware, published on 9 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Tenda AC7 15.03.06.44. The affected element is an unknown function of the file /goform/WifiMacFilterSet. Performing a manipulation of the argument wifi_chkHz results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-11526?

It affects 1 product.

Products include Tenda Ac7 Firmware.

How do I fix CVE-2025-11526?

No fix has been published for CVE-2025-11526 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-2025-11526 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-11526 exists.

All Tenda Ac7 Firmware vulnerabilities

Sources

Also known as GHSA-6jx7-g77j-r3qv.

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