CVE-2020-3497 describes multiple denial-of-service vulnerabilities in Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers, stemming from insufficient validation of CAPWAP packets. An unauthenticated, adjacent attacker can exploit these by sending a malformed CAPWAP packet, causing the device to crash and reload. With a CVSS score of 7.4 (High), this vulnerability has a low attack complexity and requires network adjacency, but can lead to a complete loss of availability. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| 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:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.