CVE-2017-3864: High severity cisco IOS vulnerability
A vulnerability in the DHCP client implementation of Cisco IOS (12.2, 12.4, and 15.0 through 15.6) and Cisco IOS XE (3.3 through 3.7) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability occurs during the parsing of a crafted DHCP packet. An attacker could exploit this vulnerability by sending crafted DHCP packets to an affected device that is configured as a DHCP client. A successful exploit could allow the attacker to cause a reload of an affected device, resulting in a DoS condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or IOS XE Software and using a specific DHCP client configuration. Cisco Bug IDs: CSCuu43892.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2017-3864?
CVE-2017-3864 is rated as a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2017-3864?
To mitigate CVE-2017-3864, upgrade to a fixed software version of Cisco IOS or IOS XE.
Which Cisco products are affected by CVE-2017-3864?
CVE-2017-3864 affects Cisco IOS versions 12.2, 12.4, and 15.0 through 15.6, as well as Cisco IOS XE versions 3.3 through 3.7.
What type of attack can be executed using CVE-2017-3864?
CVE-2017-3864 can be exploited by an unauthenticated remote attacker leading to a denial of service condition.
When was CVE-2017-3864 publicly disclosed?
CVE-2017-3864 was publicly disclosed on March 22, 2017.