CVE-2021-1288 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability

High 8.6 Published 4 Feb 2021 Updated 8 Nov 2024

Unauthenticated remote attackers can cause a denial of service on Cisco IOS XR devices via ingress packet processing flaws.

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-2021-1288?

CVE-2021-1288 is a high-severity denial of service vulnerability in Cisco Ios Xr, published on 4 Feb 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-399

Which versions are affected by CVE-2021-1288?

It affects 1 product.

Products include Cisco Ios Xr.

How do I fix CVE-2021-1288?

No fix has been published for CVE-2021-1288 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-2021-1288 being exploited?

There is no known exploitation of CVE-2021-1288 in the wild and no public exploit code.

All Cisco Ios Xr vulnerabilities

Sources

Also known as GHSA-75j3-4jfq-x36j.