CVE-2024-42547 Memory corruption in n/a

Critical 9.8 Published 12 Aug 2024 Updated 13 Aug 2024

A buffer overflow in the TOTOLINK A3100R 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: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2024-42547?

CVE-2024-42547 is a critical memory corruption vulnerability in n/a, published on 12 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

TOTOLINK A3100R V4.1.2cu.5050_B20200504 has a buffer overflow vulnerability in the http_host parameter in the loginauth function.

Weakness: CWE-120

Which versions are affected by CVE-2024-42547?

It affects 1 product.

Products include Totolink A3100r Firmware.

How do I fix CVE-2024-42547?

No fix has been published for CVE-2024-42547 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-2024-42547 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42547 exists.

Sources

Also known as GHSA-48cg-rxmx-xw45.