CVE-2019-1760 Cisco IOS XE Software Performance Routing Version 3 Denial of Service Vulnerability

Medium 6.8 Published 28 Mar 2019 Updated 21 Nov 2024

Remote attackers can cause Cisco IOS XE devices to reload by sending malformed smart probe packets, resulting in a denial of service.

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-2019-1760?

CVE-2019-1760 is a medium-severity denial of service vulnerability in Cisco Ios Xe, published on 28 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in Performance Routing Version 3 (PfRv3) of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the affected device to reload. The vulnerability is due to the processing of malformed smart probe packets. An attacker could exploit this vulnerability by sending specially crafted smart probe packets at the affected device. A successful exploit could allow the attacker to reload the device, resulting in a denial of service (DoS) attack on an affected system.

Weakness: CWE-20

Which versions are affected by CVE-2019-1760?

It affects 1 product.

Products include Cisco Ios Xe.

How do I fix CVE-2019-1760?

No fix has been published for CVE-2019-1760 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-2019-1760 being exploited?

There is no known exploitation of CVE-2019-1760 in the wild and no public exploit code.

All Cisco Ios Xe vulnerabilities

Sources

Also known as GHSA-7p5m-79w6-6wjq.