Cisco Small Business Smart and Managed Switches Denial of Service Vulnerability
CVE-2020-3496
What is CVE-2020-3496?
A vulnerability in the IPv6 packet processing engine of Cisco Small Business Smart and Managed Switches could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the switch management CLI to stop responding, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.

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Affected Version(s)
Cisco Small Business 250 Series Smart Switches Software
References
CVSS V3.1
Timeline
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Exploit known to exist
Vulnerability published
Vulnerability Reserved