CVE-2023-43240 Memory corruption in n/a

Critical 9.8 Published 21 Sep 2023 Updated 25 Sep 2024

A stack overflow in the D-Link DIR-816 router allows attackers to execute arbitrary code or cause a denial of service via the sip_address 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-2023-43240?

CVE-2023-43240 is a critical memory corruption vulnerability in n/a, published on 21 Sep 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter sip_address in ipportFilter.

Weakness: CWE-787

Which versions are affected by CVE-2023-43240?

It affects 1 product.

Products include Dlink Dir-816 A2 Firmware.

How do I fix CVE-2023-43240?

No fix has been published for CVE-2023-43240 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-2023-43240 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43240 exists.

Sources

Also known as GHSA-j6jx-4g47-jww6.