CVE-2020-8962 Memory corruption in n/a

Critical 9.8 Published 13 Feb 2020 Updated 4 Aug 2024

A stack-based buffer overflow in the D-Link DIR-842 router allows remote attackers to execute arbitrary code via a crafted POST request.

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-2020-8962?

CVE-2020-8962 is a critical memory corruption vulnerability in n/a, published on 13 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack-based buffer overflow was found on the D-Link DIR-842 REVC with firmware v3.13B09 HOTFIX due to the use of strcpy for LOGINPASSWORD when handling a POST request to the /MTFWU endpoint.

Weakness: CWE-787

Which versions are affected by CVE-2020-8962?

It affects 1 product.

Products include Dlink Dir-842 Firmware.

How do I fix CVE-2020-8962?

No fix has been published for CVE-2020-8962 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-2020-8962 being exploited?

There is no known exploitation of CVE-2020-8962 in the wild and no public exploit code.

Sources

Also known as GHSA-jjgf-8279-h8cq.