Cisco Nexus 3600 and 9500-R Series Switching Platforms Layer 2 Loop Denial of Service Vulnerability

A vulnerability with the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexus 3600 Platform Switches and Cisco Nexus 9500-R Series Switching Platforms could allow an unauthenticated, adjacent attacker to trigger a Layer 2 traffic loop. This vulnerability is due to a logic error when...

PT-2026-21939

Name of the Vulnerable Software and Affected Versions Cisco Nexus 3600 Platform Switches affected versions not specified Cisco Nexus 9500-R Series Switching Platforms affected versions not specified Description A flaw exists in the Ethernet VPN EVPN Layer 2 ingress packet processing of Cisco Nexu...

EUVD-2021-21417

Malware in sbrugna...

CVE-2021-34767: Always-Incorrect Control Flow Implementation

A vulnerability in IPv6 traffic processing of Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a Layer 2 L2 loop in a configured VLAN, resulting in a denial of service DoS condition for that...

PT-2021-4846

Name of the Vulnerable Software and Affected Versions Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers affected versions not specified Description A logic error in the processing of specific link-local IPv6 traffic could allow an unauthenticated,...

Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers IPv6 Denial of Service (cisco-sa-ewlc-ipv6-dos-NMYeCnZv)

According to its self-reported version, Cisco IOS-XE Software is affected by a vulnerability. - A vulnerability in IPv6 traffic processing of Cisco IOS XE Wireless Controller Software for Cisco Catalyst 9000 Family Wireless Controllers could allow an unauthenticated, adjacent attacker to cause a...