NewsSecurity Vulnerabilities

Cisco Aironet Access Point Software Resource Exhaustion Denial of Service Vulnerability [CVE-2024-20354]

CVE number – CVE-2024-20354

A vulnerability in the handling of encrypted wireless frames of Cisco Aironet Access Point (AP) Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device.

This vulnerability is due to incomplete cleanup of resources when dropping certain malformed frames. An attacker could exploit this vulnerability by connecting as a wireless client to an affected AP and sending specific malformed frames over the wireless connection. A successful exploit could allow the attacker to cause degradation of service to other clients, which could potentially lead to a complete DoS condition.

At the time of publication, this vulnerability affected the following Cisco products if they were running a vulnerable release of Cisco Aironet AP Software:

  • 800 and 1900 Series ISR Integrated APs
  • Aironet 1530 Series Outdoor APs
  • Aironet 1552 Outdoor APs
  • Aironet 1570 Series Outdoor APs
  • Aironet 1700 Series APs
  • Aironet 2700 Series APs
  • Aironet 3700 Series APs
  • Industrial Wireless 3700 Series APs

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:


Duncan is a technology professional with over 20 years experience of working in various IT roles. He has a interest in cyber security, and has a wide range of other skills in radio, electronics and telecommunications.

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