CVE-2023-34940 Memory corruption in n/a

High 7.5 Published 12 Jun 2023 Updated 6 Jan 2025

A stack overflow in the Asus RT-N10LX router allows attackers to execute arbitrary code or cause denial of service via the url parameter.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-34940?

CVE-2023-34940 is a high-severity memory corruption vulnerability in n/a, published on 12 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Asus RT-N10LX Router v2.0.0.39 was discovered to contain a stack overflow via the url parameter at /start-apply.html. NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

Weakness: CWE-787

Which versions are affected by CVE-2023-34940?

It affects 1 product.

Products include Asus Rt-N10lx Firmware.

How do I fix CVE-2023-34940?

No fix has been published for CVE-2023-34940 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-2023-34940 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-34940 exists.

Sources

Also known as GHSA-wf3v-g5fj-2649.