CVE-2021-3254 Denial of service in n/a

High 7.5 Published Updated

Remote attackers can cause a Denial of Service on Asus DSL-N14U-B1 routers by performing a TCP SYN scan.

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-2021-3254?

CVE-2021-3254 is a high-severity denial of service vulnerability in n/a, published on 11 May 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Asus DSL-N14U-B1 1.1.2.3_805 allows remote attackers to cause a Denial of Service (DoS) via a TCP SYN scan using nmap.

Which versions are affected by CVE-2021-3254?

It affects 1 product.

Products include Asus Dsl-N14u-B1 Firmware.

How do I fix CVE-2021-3254?

No fix has been published for CVE-2021-3254 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-3254 being exploited?

There is no known exploitation of CVE-2021-3254 in the wild and no public exploit code.

Sources

Also known as GHSA-v6mh-52q2-xjgf.

Is CVE-2021-3254 in your software?

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