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An attacker could exploit this vulnerability by sending a BGP update message that contains specific EVPN attributes. This vulnerability is due to the incorrect processing of a BGP update message that contains specific EVPN attributes.

Cisco Meraki has released software updates that address this vulnerability.Ī vulnerability in the implementation of the Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. Note: When the attack traffic stops, the Cisco An圜onnect VPN server recovers gracefully without requiring manual intervention. A sustained attack could prevent new SSL VPN connections from being established. A successful exploit could allow the attacker to cause the Cisco An圜onnect VPN server to crash and restart, resulting in the failure of the established SSL VPN connections and forcing remote users to initiate a new VPN connection and re-authenticate. An attacker could exploit this vulnerability by crafting a malicious request and sending it to the affected device. This vulnerability is due to insufficient validation of client-supplied parameters while establishing an SSL VPN session. A successful exploit could allow the attacker to execute code with SYSTEM privileges.Ī vulnerability in the Cisco An圜onnect VPN server of Cisco Meraki MX and Cisco Meraki Z3 Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

An attacker could exploit this vulnerability by abusing a specific function of the Windows installer process.

This vulnerability exists because improper permissions are assigned to a temporary directory that is created during the update process. The client update process is executed after a successful VPN connection is established. A vulnerability in the client update process of Cisco An圜onnect Secure Mobility Client Software for Windows and Cisco Secure Client Software for Windows could allow a low-privileged, authenticated, local attacker to elevate privileges to those of SYSTEM.

Cisco anyconnect vpn client download from asa