CVE-2023-39666 Memory corruption in n/a

Critical 9.8 Published 18 Aug 2023 Updated 7 Oct 2024

Buffer overflows in D-Link DIR-842 routers allow attackers to execute arbitrary code or cause denial of service via crafted parameters.

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-2023-39666?

CVE-2023-39666 is a critical memory corruption vulnerability in n/a, published on 18 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link DIR-842 fw_revA_1-02_eu_multi_20151008 was discovered to contain multiple buffer overflows in the fgets function via the acStack_120 and acStack_220 parameters.

Weakness: CWE-120

Which versions are affected by CVE-2023-39666?

It affects 1 product.

Products include Dlink Dir-842 Firmware.

How do I fix CVE-2023-39666?

No fix has been published for CVE-2023-39666 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-2023-39666 being exploited?

There is no known exploitation of CVE-2023-39666 in the wild and no public exploit code.

Sources

Also known as GHSA-8wv2-9v5c-9g5q.