Vulnerability Details CVE-2020-3399
A vulnerability in the Control and Provisioning of Wireless Access Points (CAPWAP) protocol processing of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition of an affected device. The vulnerability is due to insufficient input validation during CAPWAP packet processing. An attacker could exploit this vulnerability by sending a crafted CAPWAP packet to an affected device, resulting in a buffer over-read. A successful exploit could allow the attacker to cause the affected device to crash and reload, resulting in a DoS condition on the affected device.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.006
EPSS Ranking 67.2%
CVSS Severity
CVSS v3 Score 8.6
CVSS v2 Score 7.8
References
Products affected by CVE-2020-3399
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cpe:2.3:h:cisco:catalyst_9800-40:-
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cpe:2.3:h:cisco:catalyst_9800-80:-
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cpe:2.3:h:cisco:catalyst_9800-cl:-
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cpe:2.3:h:cisco:catalyst_9800-l-c:-
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cpe:2.3:h:cisco:catalyst_9800-l-f:-
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cpe:2.3:h:cisco:catalyst_9800-l:-
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cpe:2.3:o:cisco:ios_xe:16.12
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cpe:2.3:o:cisco:ios_xe:16.12.1s
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cpe:2.3:o:cisco:ios_xe:16.12.2