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CVE-2024-20303

HIGH
Published 2024-03-27T17:00:37.075Z
Actions:

CVSS Score

V3.1
7.4
/10
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.000
probability
of exploitation in the wild

There is a 0.0% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.114
Higher than 11.4% of all CVEs

Attack Vector Metrics

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Cisco

Cisco IOS XE Software

Affected Versions:

17.2.1 17.2.1r 17.2.1a 17.2.1v 17.2.2 17.2.3 17.3.1 17.3.2 17.3.3 17.3.1a 17.3.1w 17.3.2a 17.3.1x 17.3.1z 17.3.4 17.3.5 17.3.4a 17.3.6 17.3.4b 17.3.4c 17.3.5a 17.3.5b 17.3.7 17.3.8 17.3.8a 17.4.1 17.4.2 17.4.1a 17.4.1b 17.4.2a 17.5.1 17.5.1a 17.6.1 17.6.2 17.6.1w 17.6.1a 17.6.1x 17.6.3 17.6.1y 17.6.1z 17.6.3a 17.6.4 17.6.1z1 17.6.5 17.6.5a 17.7.1 17.7.1a 17.7.1b 17.7.2 17.10.1 17.10.1a 17.10.1b 17.8.1 17.8.1a 17.9.1 17.9.1w 17.9.2 17.9.1a 17.9.1x 17.9.1y 17.9.3 17.9.2a 17.9.1x1 17.9.3a 17.9.1y1 17.11.1 17.11.1a 17.11.99SW

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wlc-mdns-dos-4hv6pBGf
Published: 2024-03-27T17:00:37.075Z
Last Modified: 2024-08-01T21:59:41.376Z
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