CVE-2023-43239 Memory corruption in n/a

High 8.8 Published Updated

A stack overflow in the D-Link DIR-816 router allows attackers to execute arbitrary code or cause a denial of service via the showMACfilterMAC function.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-43239?

CVE-2023-43239 is a high-severity memory corruption vulnerability in n/a, published on 21 Sep 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

D-Link DIR-816 A2 v1.10CNB05 was discovered to contain a stack overflow via parameter flag_5G in showMACfilterMAC.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2023-43239?

It affects 1 product.

Products include Dlink Dir-816 A2 Firmware.

How do I fix CVE-2023-43239?

No fix has been published for CVE-2023-43239 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-2023-43239 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-43239 exists.

Sources

Also known as GHSA-8j5g-957r-vpvw.

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