CVE-2024-42543 Memory corruption in n/a

High 8.8 Published Updated

A buffer overflow in the TOTOLINK A3700R router allows attackers to execute arbitrary code or cause a denial of service via the http_host parameter.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2024-42543?

CVE-2024-42543 is a high-severity memory corruption vulnerability in n/a, published on 12 Aug 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

TOTOLINK A3700R v9.1.2u.5822_B20200513 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.

Weakness: CWE-120

Which versions are affected by CVE-2024-42543?

It affects 1 product.

Products include Totolink A3700r Firmware.

How do I fix CVE-2024-42543?

No fix has been published for CVE-2024-42543 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-2024-42543 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42543 exists.

Sources

Also known as GHSA-82fp-rv69-j7ww.

Is CVE-2024-42543 in your software?

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