CVE-2024-42520 Memory corruption in n/a

Critical 9.8 Published 12 Aug 2024 Updated 13 Aug 2024

A buffer overflow in the Boa web server allows attackers to execute arbitrary code or cause denial of service on TOTOLINK A3002R routers.

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-2024-42520?

CVE-2024-42520 is a critical memory corruption vulnerability in Totolink A3002r Firmware, 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 A3002R v4.0.0-B20230531.1404 contains a buffer overflow vulnerability in /bin/boa via formParentControl.

Weakness: CWE-120

Which versions are affected by CVE-2024-42520?

It affects 1 product.

Products include Totolink A3002r Firmware.

How do I fix CVE-2024-42520?

No fix has been published for CVE-2024-42520 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-2024-42520 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-42520 exists.

All Totolink A3002r Firmware vulnerabilities

Sources

Also known as GHSA-m373-6rxj-pvqw.