CVE-2001-0041 Denial of service in n/a

High 7.8 Published Updated

Remote attackers can cause denial of service on Cisco Catalyst switches by triggering a memory leak through repeated failed telnet authentication attempts.

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-2001-0041?

CVE-2001-0041 is a high-severity denial of service vulnerability in n/a, published on 7 May 2001. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts.

Weakness: CWE-399

Which versions are affected by CVE-2001-0041?

It affects 1 product.

Products include Cisco Catos.

How do I fix CVE-2001-0041?

No fix has been published for CVE-2001-0041 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-2001-0041 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2001-0041 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-w3j9-383p-8723.

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