CVE-2020-3359 describes a denial-of-service vulnerability in the multicast DNS (mDNS) feature of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers. This flaw stems from improper validation of mDNS packets, allowing an unauthenticated, remote attacker to trigger a device reload. With a CVSS score of 8.6 (HIGH), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, leading to a complete loss of availability. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
16.12.1CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.