Riskcovery

CVE-2024-20303

State
Published
Severity
7.4 High
Published
Mar 27, 2024
Updated
Aug 1, 2024
Reserved
Nov 8, 2023

Read the record on cve.org

Description

A vulnerability in the multicast DNS (mDNS) gateway feature of Cisco IOS XE Software for Wireless LAN Controllers (WLCs) could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition. This vulnerability is due to improper management of mDNS client entries. An attacker could exploit this vulnerability by connecting to the wireless network and sending a continuous stream of specific mDNS packets. A successful exploit could allow the attacker to cause the wireless controller to have high CPU utilization, which could lead to access points (APs) losing their connection to the controller and result in a DoS condition.

Scores

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

Weaknesses

Affected Products

ProductVersions
Cisco IOS XE SoftwareCisco
  • 17.2.1Affected
  • 17.2.1rAffected
  • 17.2.1aAffected
  • 17.2.1vAffected
  • 17.2.2Affected
  • 17.2.3Affected
  • 17.3.1Affected
  • 17.3.2Affected
  • 17.3.3Affected
  • 17.3.1aAffected
  • 17.3.1wAffected
  • 17.3.2aAffected
  • 17.3.1xAffected
  • 17.3.1zAffected
  • 17.3.4Affected
  • 17.3.5Affected
  • 17.3.4aAffected
  • 17.3.6Affected
  • 17.3.4bAffected
  • 17.3.4cAffected
  • 17.3.5aAffected
  • 17.3.5bAffected
  • 17.3.7Affected
  • 17.3.8Affected
  • 17.3.8aAffected
  • and 43 more versions

References

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