CVE-2020-3552

A vulnerability in the Ethernet packet handling of Cisco Aironet Access Points (APs) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by connecting as a wired client to the Ethernet interface of an affected device and sending a series of specific packets within a short time frame. A successful exploit could allow the attacker to cause a NULL pointer access that results in a reload of the affected device.

Score

CVSS 3.1 7.4 High

Status

Modified - psirt@cisco.com

Published

2020-09-24

Last modified

2024-11-13

Weaknesses

CWE-476

Affected products

• Access Points (Cisco)
• Aironet Access Point Software (Cisco)
• Business Access Points (Cisco)
• Cisco Aironet Access Point Software (Cisco)
• Wireless Lan Controller (Cisco)

References

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ap-ethport-dos-xtjTt8pY