CVE-2025-8169 D-Link DIR-513 HTTP POST Request formSetWanPPTPpath formSetWanPPTPcallback buffer overflow

High 8.7 Published 25 Jul 2025 Updated 28 Jul 2025

Remote attackers can exploit a buffer overflow in the HTTP POST handler of the D-Link DIR-513 router to execute arbitrary code.

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-2025-8169?

CVE-2025-8169 is a high-severity memory corruption vulnerability in D-Link DIR-513, published on 25 Jul 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability classified as critical has been found in D-Link DIR-513 1.10. This affects the function formSetWanPPTPcallback of the file /goform/formSetWanPPTPpath of the component HTTP POST Request Handler. The manipulation of the argument curTime leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-120, CWE-787, CWE-119

Which versions are affected by CVE-2025-8169?

It affects 1 product.

Products include Dlink Dir-513 Firmware.

How do I fix CVE-2025-8169?

No fix has been published for CVE-2025-8169 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-2025-8169 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-8169 exists.

Sources

Also known as GHSA-g6xf-cqq5-rjpx.