CVE-2024-20480

HIGH EPSS 43.3%
Published Sep 25, 20241y ago · Modified Jun 17, 20262w ago
8.6 CVSS 3.1
High
Find Similar
Published Sep 25, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

A vulnerability in the DHCP Snooping feature of Cisco IOS XE Software on Software-Defined Access (SD-Access) fabric edge nodes could allow an unauthenticated, remote attacker to cause high CPU utilization on an affected device, resulting in a denial of service (DoS) condition that requires a manual reload to recover. This vulnerability is due to improper handling of IPv4 DHCP packets. An attacker could exploit this vulnerability by sending certain IPv4 DHCP 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 that requires a manual reload to recover.

CVSS Details

Base Score
8.6
Exploitability
3.9
Impact
4.0
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
43.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 2

CWE-670
CWE-783

Affected Products 205

VendorProductVersionRange
ciscoios_xe16.1.1any
ciscoios_xe16.1.2any
ciscoios_xe16.1.3any
ciscoios_xe16.2.1any
ciscoios_xe16.2.2any
ciscoios_xe16.3.1any
ciscoios_xe16.3.1aany
ciscoios_xe16.3.2any
ciscoios_xe16.3.3any
ciscoios_xe16.3.4any
ciscoios_xe16.3.5any
ciscoios_xe16.3.5bany
ciscoios_xe16.3.6any
ciscoios_xe16.3.7any
ciscoios_xe16.3.8any
ciscoios_xe16.3.9any
ciscoios_xe16.3.10any
ciscoios_xe16.3.11any
ciscoios_xe16.4.1any
ciscoios_xe16.4.2any
ciscoios_xe16.4.3any
ciscoios_xe16.5.1any
ciscoios_xe16.5.1aany
ciscoios_xe16.5.1bany
ciscoios_xe16.5.2any
ciscoios_xe16.5.3any
ciscoios_xe16.6.1any
ciscoios_xe16.6.2any
ciscoios_xe16.6.3any
ciscoios_xe16.6.4any
ciscoios_xe16.6.4aany
ciscoios_xe16.6.5any
ciscoios_xe16.6.5aany
ciscoios_xe16.6.6any
ciscoios_xe16.6.7any
ciscoios_xe16.6.8any
ciscoios_xe16.6.9any
ciscoios_xe16.6.10any
ciscoios_xe16.7.1any
ciscoios_xe16.7.1aany
ciscoios_xe16.7.1bany
ciscoios_xe16.7.2any
ciscoios_xe16.7.3any
ciscoios_xe16.7.4any
ciscoios_xe16.8.1any
ciscoios_xe16.8.1aany
ciscoios_xe16.8.1bany
ciscoios_xe16.8.1cany
ciscoios_xe16.8.1dany
ciscoios_xe16.8.1eany
ciscoios_xe16.8.1sany
ciscoios_xe16.8.2any
ciscoios_xe16.8.3any
ciscoios_xe16.9.1any
ciscoios_xe16.9.1aany
ciscoios_xe16.9.1bany
ciscoios_xe16.9.1sany
ciscoios_xe16.9.2any
ciscoios_xe16.9.3any
ciscoios_xe16.9.3aany
ciscoios_xe16.9.4any
ciscoios_xe16.9.5any
ciscoios_xe16.9.5fany
ciscoios_xe16.9.6any
ciscoios_xe16.9.7any
ciscoios_xe16.9.8any
ciscoios_xe16.10.1any
ciscoios_xe16.10.1aany
ciscoios_xe16.10.1bany
ciscoios_xe16.10.1cany
ciscoios_xe16.10.1dany
ciscoios_xe16.10.1eany
ciscoios_xe16.10.1fany
ciscoios_xe16.10.1gany
ciscoios_xe16.10.1sany
ciscoios_xe16.10.2any
ciscoios_xe16.10.3any
ciscoios_xe16.11.1any
ciscoios_xe16.11.1aany
ciscoios_xe16.11.1bany
ciscoios_xe16.11.1sany
ciscoios_xe16.11.2any
ciscoios_xe16.12.1any
ciscoios_xe16.12.1aany
ciscoios_xe16.12.1cany
ciscoios_xe16.12.1sany
ciscoios_xe16.12.1tany
ciscoios_xe16.12.1wany
ciscoios_xe16.12.1xany
ciscoios_xe16.12.1yany
ciscoios_xe16.12.1z1any
ciscoios_xe16.12.1z2any
ciscoios_xe16.12.2any
ciscoios_xe16.12.2aany
ciscoios_xe16.12.2sany
ciscoios_xe16.12.3any
ciscoios_xe16.12.3aany
ciscoios_xe16.12.3sany
ciscoios_xe16.12.4any
ciscoios_xe16.12.4aany
ciscoios_xe16.12.5any
ciscoios_xe16.12.5aany
ciscoios_xe16.12.5bany
ciscoios_xe16.12.6any
ciscoios_xe16.12.6aany
ciscoios_xe16.12.7any
ciscoios_xe16.12.8any
ciscoios_xe16.12.9any
ciscoios_xe16.12.10any
ciscoios_xe16.12.10aany
ciscoios_xe16.12.11any
ciscoios_xe17.1.1any
ciscoios_xe17.1.1aany
ciscoios_xe17.1.1sany
ciscoios_xe17.1.1tany
ciscoios_xe17.1.3any
ciscoios_xe17.2.1any
ciscoios_xe17.2.1aany
ciscoios_xe17.2.1rany
ciscoios_xe17.2.1vany
ciscoios_xe17.2.2any
ciscoios_xe17.2.3any
ciscoios_xe17.3.1any
ciscoios_xe17.3.1aany
ciscoios_xe17.3.1wany
ciscoios_xe17.3.1xany
ciscoios_xe17.3.1zany
ciscoios_xe17.3.2any
ciscoios_xe17.3.2aany
ciscoios_xe17.3.3any
ciscoios_xe17.3.4any
ciscoios_xe17.3.4aany
ciscoios_xe17.3.4bany
ciscoios_xe17.3.4cany
ciscoios_xe17.3.5any
ciscoios_xe17.3.5aany
ciscoios_xe17.3.5bany
ciscoios_xe17.3.6any
ciscoios_xe17.3.7any
ciscoios_xe17.3.8any
ciscoios_xe17.3.8aany
ciscoios_xe17.4.1any
ciscoios_xe17.4.1aany
ciscoios_xe17.4.1bany
ciscoios_xe17.4.2any
ciscoios_xe17.4.2aany
ciscoios_xe17.5.1any
ciscoios_xe17.5.1aany
ciscoios_xe17.6.1any
ciscoios_xe17.6.1aany
ciscoios_xe17.6.1wany
ciscoios_xe17.6.1xany
ciscoios_xe17.6.1yany
ciscoios_xe17.6.1zany
ciscoios_xe17.6.1z1any
ciscoios_xe17.6.2any
ciscoios_xe17.6.3any
ciscoios_xe17.6.3aany
ciscoios_xe17.6.4any
ciscoios_xe17.6.5any
ciscoios_xe17.6.5aany
ciscoios_xe17.6.6any
ciscoios_xe17.6.6aany
ciscoios_xe17.6.7any
ciscoios_xe17.7.1any
ciscoios_xe17.7.1aany
ciscoios_xe17.7.1bany
ciscoios_xe17.7.2any
ciscoios_xe17.8.1any
ciscoios_xe17.8.1aany
ciscoios_xe17.9.1any
ciscoios_xe17.9.1aany
ciscoios_xe17.9.1wany
ciscoios_xe17.9.1xany
ciscoios_xe17.9.1x1any
ciscoios_xe17.9.1yany
ciscoios_xe17.9.1y1any
ciscoios_xe17.9.2any
ciscoios_xe17.9.2aany
ciscoios_xe17.9.3any
ciscoios_xe17.9.3aany
ciscoios_xe17.9.4any
ciscoios_xe17.9.4aany
ciscoios_xe17.9.5any
ciscoios_xe17.9.5aany
ciscoios_xe17.9.5bany
ciscoios_xe17.10.1any
ciscoios_xe17.10.1aany
ciscoios_xe17.10.1bany
ciscoios_xe17.11.1any
ciscoios_xe17.11.1aany
ciscoios_xe17.11.99swany
ciscoios_xe17.12.1any
ciscoios_xe17.12.1aany
ciscoios_xe17.12.1wany
ciscoios_xe17.12.1xany
ciscoios_xe17.12.1yany
ciscoios_xe17.12.2any
ciscoios_xe17.12.2aany
ciscoios_xe17.12.3any
ciscoios_xe17.12.3aany
ciscoios_xe17.13.1any
ciscoios_xe17.13.1aany
ciscoios_xe17.14.1any
ciscoios_xe17.14.1aany

References 1

  • sec.cloudapps.cisco.com https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-xe-sda-edge-dos-MBcbG9k
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.