CVE-2025-5862 Tenda AC7 setPptpUserList formSetPPTPUserList buffer overflow

High 8.7 Published Updated

Remote attackers can trigger a buffer overflow in the Tenda AC7 router's PPTP user list handler, potentially leading to arbitrary code execution.

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-2025-5862?

CVE-2025-5862 is a high-severity memory corruption vulnerability in Tenda Ac7 Firmware, published on 9 Jun 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 and classified as critical. This issue affects the function formSetPPTPUserList of the file /goform/setPptpUserList. The manipulation of the argument list leads to buffer overflow. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-5862?

It affects 1 product.

Products include Tenda Ac7 Firmware.

How do I fix CVE-2025-5862?

No fix has been published for CVE-2025-5862 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-2025-5862 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-5862 exists.

All Tenda Ac7 Firmware vulnerabilities

Sources

Also known as GHSA-6vfc-8w2v-vx36.

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