title: Cisco IOS XE Software Performance Routing Version 3 Denial of Service Vulnerability
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.
problem types: CWE-20
affected:
{
product: Cisco IOS XE Software
vendor: Cisco
versions:
status: affected, version: 3.16.4S
status: affected, version: 3.16.4aS
status: affected, version: 3.16.4bS
status: affected, version: 3.16.4gS
status: affected, version: 3.16.5S
status: affected, version: 3.16.4cS
status: affected, version: 3.16.4dS
status: affected, version: 3.16.4eS
status: affected, version: 3.16.6S
status: affected, version: 3.16.5aS
status: affected, version: 3.16.5bS
status: affected, version: 3.16.7S
status: affected, version: 3.16.6bS
status: affected, version: 3.16.7aS
status: affected, version: 3.16.7bS
status: affected, version: 3.2.0JA
status: affected, version: 16.3.2
status: affected, version: 16.3.3
status: affected, version: 16.3.4
status: affected, version: 16.3.5
status: affected, version: 16.3.5b
status: affected, version: 16.3.6
status: affected, version: 16.4.1
status: affected, version: 16.4.2
status: affected, version: 16.4.3
status: affected, version: 16.5.1
status: affected, version: 16.5.1a
status: affected, version: 16.5.1b
status: affected, version: 16.5.2
status: affected, version: 16.5.3
status: affected, version: 16.6.1
status: affected, version: 16.6.2
status: affected, version: 16.6.3
status: affected, version: 16.7.1
status: affected, version: 16.7.1a
status: affected, version: 16.7.1b
status: affected, version: 16.8.1
status: affected, version: 16.8.1a
status: affected, version: 16.8.1b
status: affected, version: 16.8.1s
status: affected, version: 16.8.1c
}
metrics:
cvssV3_0: [
attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: HIGH
baseScore: 6.8
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: NONE
privilegesRequired: NONE
scope: CHANGED
userInteraction: NONE
vectorString: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
version: 3.0
]
exploits: The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.