CVE-2021-29280 Memory corruption in n/a

Medium 6.4 Published Updated

An ARP poisoning attack can trigger a buffer overflow in the TP-Link WR840N router, potentially allowing remote code execution or denial of service.

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

What is CVE-2021-29280?

CVE-2021-29280 is a medium-severity memory corruption vulnerability in n/a, published on 19 Aug 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow

Weakness: CWE-668

Which versions are affected by CVE-2021-29280?

It affects 1 product.

Products include Tp-Link Tl-Wr840n Firmware.

How do I fix CVE-2021-29280?

No fix has been published for CVE-2021-29280 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-2021-29280 being exploited?

There is no known exploitation of CVE-2021-29280 in the wild and no public exploit code.

Sources

Also known as GHSA-qcq8-mgfx-4pfj.

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