CVE-2020-3429 is a denial-of-service vulnerability affecting Cisco IOS XE Wireless Controller Software on Catalyst 9000 Family devices. It stems from incorrect packet processing during WPA2/WPA3 authentication handshakes when 802.11r BSS Fast Transition is enabled, allowing an unauthenticated, adjacent attacker to trigger a device reload with a crafted authentication packet. Rated Medium severity (CVSS 6.5), this vulnerability has a low attack complexity and requires adjacent network access (AV:A), with the sole impact being high availability loss (A:H). There is no confidentiality or integrity impact. There is no evidence of active exploitation, and no public exploit code exists in Metasploit, Nuclei, or ExploitDB. Community discussion is minimal, with only one mention found, and there is no media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
16.12.1sCPE matchmatch criteria | cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* |
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
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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.