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Cisco ASA Software IPsec Denial of Service Vulnerability (cisco-sa-20170419-asa-ipsec) CVE-2017-6609

CVSSv3 Score
Vulnerability description

A vulnerability in the IPsec code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of the affected system.

Risk description

The vulnerability is due to improper parsing of malformed IPsec packets. An attacker could exploit this vulnerability by sending malformed IPsec packets to the affected system. Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed firewall mode only and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. An attacker needs to establish a valid IPsec tunnel before exploiting this vulnerability. An authenticated attacker may cause a denial of service condition.


See the referenced vendor advisory for a solution.

Not available
Detectable with
Network Scanner
Scan engine
Exploitable with Sniper
CVE Published
Apr 20, 2017
Detection added at
Software Type
Not available
Not available
Not available