CVE-2024-20336: Cisco WAP121 Firmware

Medium severity, CVSS 6.5. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability in the web-based user interface of Cisco Small Business 100, 300, and 500 Series Wireless APs could allow an authenticated, remote attacker to perform buffer overflow attacks against an affected device. In order to exploit this vulnerability, the attacker must have valid administrative credentials for the device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system.

Affected products

• Cisco WAP121 Firmware: affected versions not specified
• Cisco WAP125 Firmware: affected versions not specified
• Cisco WAP131 Firmware: affected versions not specified
• Cisco WAP150 Firmware: affected versions not specified
• Cisco WAP320 Firmware: affected versions not specified
• Cisco WAP321 Firmware: affected versions not specified
• Cisco WAP351 Firmware: affected versions not specified
• Cisco WAP361 Firmware: affected versions not specified
• Cisco WAP371 Firmware: affected versions not specified
• Cisco WAP571 Firmware: affected versions not specified
• Cisco WAP571E Firmware: affected versions not specified
• Cisco WAP581 Firmware: affected versions not specified

Published 2024-03-06. Last modified 2026-06-17.