5.7
CVSSv2

CVE-2020-3390

Published: 24/09/2020 Updated: 06/08/2021
CVSS v2 Base Score: 5.7 | Impact Score: 6.9 | Exploitability Score: 5.5
CVSS v3 Base Score: 7.4 | Impact Score: 4 | Exploitability Score: 2.8
VMScore: 507
Vector: AV:A/AC:M/Au:N/C:N/I:N/A:C

Vulnerability Summary

A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of the Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent malicious user to cause the device to unexpectedly reload, causing a denial of service (DoS) condition on an affected device. The vulnerability is due to the lack of input validation of the information used to generate an SNMP trap in relation to a wireless client connection. An attacker could exploit this vulnerability by sending an 802.1x packet with crafted parameters during the wireless authentication setup phase of a connection. A successful exploit could allow the malicious user to cause the device to reload, causing a DoS condition.

Vulnerability Trend

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cisco ios_xe 16.12.1

Vendor Advisories

A vulnerability in Simple Network Management Protocol (SNMP) trap generation for wireless clients of the Cisco IOS XE Wireless Controller Software for the Cisco Catalyst 9000 Family could allow an unauthenticated, adjacent attacker to cause the device to unexpectedly reload, causing a denial of service (DoS) condition on an affected device The vu ...