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8.6 High

CVE-2020-3221 A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800…

Description

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper validation of parameters in a Flexible NetFlow Version 9 record. An attacker could exploit this vulnerability by sending a malformed Flexible NetFlow Version 9 packet to the Control and Provisioning of Wireless Access Points (CAPWAP) data port of an affected device. An exploit could allow the attacker to trigger an infinite loop, resulting in a process crash that would cause a reload of the device.

Affected products and versions

Product Affected versions Fixed in
Cisco IOS XE Software 16.10.1 Versions not published

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Cisco IOS XE Software 16.10.1

The 4 CVEs of Cisco IOS XE Software 16.10.1 →
CVE-2020-3222 A vulnerability in the web-based user interface (web UI) of Cisco IOS XE Software could allow an unauthenticated,… 4.3 Medium CVE-2020-3211 A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker to execute… 7.2 High CVE-2020-3206 A vulnerability in the handling of IEEE 802.11w Protected Management Frames (PMFs) of Cisco Catalyst 9800 Series… 4.7 Medium
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