Riskcovery

CVE-2026-20086

State
Published
Severity
8.6 High
Published
Mar 25, 2026
Updated
Mar 26, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in the processing of Control and Provisioning of Wireless Access Points (CAPWAP) packets of Cisco IOS XE Wireless Controller Software for the Catalyst CW9800 Family could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of a malformed CAPWAP packet. An attacker could exploit this vulnerability by sending a malformed CAPWAP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload unexpectedly, resulting in a DoS condition.

Scores

CVSSScoreVectorSource
3.18.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Hcisco

Weaknesses

  • CWE-230 Improper Handling of Missing Values

Affected Products

ProductVersions
Cisco IOS XE SoftwareCisco
  • 17.14.1Affected
  • 17.15.1Affected
  • 17.15.2Affected
  • 17.15.3Affected
  • 17.15.2bAffected
  • 17.15.4Affected
  • 17.15.4dAffected
  • 17.16.1Affected
  • 17.17.1Affected
  • 17.18.1Affected

References

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