CVE-2025-13191 D-Link DIR-816L soap.cgi soapcgi_main stack-based overflow

High 8.7 Published Updated

Remote attackers can execute arbitrary code via a stack-based buffer overflow in the soap.cgi component of unsupported D-Link DIR-816L routers.

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-2025-13191?

CVE-2025-13191 is a high-severity memory corruption vulnerability in D-Link DIR-816L, published on 15 Nov 2025. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was determined in D-Link DIR-816L 2_06_b09_beta. This issue affects the function soapcgi_main of the file /soap.cgi. This manipulation causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-121, CWE-119

Which versions are affected by CVE-2025-13191?

It affects 1 product.

Products include Dlink Dir-816l Firmware.

How do I fix CVE-2025-13191?

No fix has been published for CVE-2025-13191 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-2025-13191 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-13191 exists.

Sources

Also known as GHSA-fj3w-7rxg-jxhm.

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