CVE-2020-3399 describes a denial-of-service vulnerability in Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers, stemming from insufficient input validation in the CAPWAP protocol. An unauthenticated, remote attacker can exploit this by sending a crafted CAPWAP packet, leading to a buffer over-read that causes the device to crash and reload. With a CVSS score of 8.6 (High), this vulnerability has a network attack vector and low attack complexity, posing a significant availability risk. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
16.12CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12:*:*:*:*:*:*:* | ||
16.12.1sCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* | ||
16.12.2CPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/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.