CVE-2025-15217 Tenda AC23 HTTP POST Request formSetPPTPUserList buffer overflow

High 8.7 Published Updated

A remote attacker can trigger a buffer overflow in the Tenda AC23 router via a crafted HTTP POST request, 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-2025-15217?

CVE-2025-15217 is a high-severity memory corruption vulnerability in Tenda AC23, published on 30 Dec 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A security flaw has been discovered in Tenda AC23 16.03.07.52. Affected is the function formSetPPTPUserList of the component HTTP POST Request Handler. Performing a manipulation of the argument list results in buffer overflow. The attack can be initiated remotely.

Weakness: CWE-120, CWE-119

Which versions are affected by CVE-2025-15217?

It affects 1 product.

Products include Tenda Ac23 Firmware.

How do I fix CVE-2025-15217?

No fix has been published for CVE-2025-15217 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-2025-15217 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15217 exists.

Sources

Also known as GHSA-mg7r-rmfx-wx93.

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