CVE-2024-20314

HIGH

Cisco IOS XE - Unauthenticated Denial of Service via IPv4 Packet Handling

Title source: llm
STIX 2.1

Description

A vulnerability in the IPv4 Software-Defined Access (SD-Access) fabric edge node feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause high CPU utilization and stop all traffic processing, resulting in a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of certain IPv4 packets. An attacker could exploit this vulnerability by sending certain IPv4 packets to an affected device. A successful exploit could allow the attacker to cause the device to exhaust CPU resources and stop processing traffic, resulting in a DoS condition.

Scores

CVSS v3 8.6
EPSS 0.0082
EPSS Percentile 74.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-783
Status published
Products (50)
cisco/ios_xe 16.1.1
cisco/ios_xe 16.1.2
cisco/ios_xe 16.1.3
cisco/ios_xe 16.2.1
cisco/ios_xe 16.2.2
cisco/ios_xe 16.3.1
cisco/ios_xe 16.3.1a
cisco/ios_xe 16.3.2
cisco/ios_xe 16.3.3
cisco/ios_xe 16.3.4
... and 40 more
Published Mar 27, 2024
Tracked Since Feb 18, 2026