Denial of service in Cisco IOS XE and Cisco IOS - CVE-2017-3864
Published: March 23, 2017 / Updated: April 5, 2018
Vulnerability identifier: #VU6165
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-3864
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS conditions on the target system.
The weakness exists due to an error when parsing malicious DHCP packet. A remote can sendspecially crafted DHCP packets and cause the affected device to reload.
Successful exploitation of the vulnerability results in denial of service.
The weakness exists due to an error when parsing malicious DHCP packet. A remote can sendspecially crafted DHCP packets and cause the affected device to reload.
Successful exploitation of the vulnerability results in denial of service.
Affected software
Cisco IOS XE
Cisco IOS
Cisco IOS
How to mitigate CVE-2017-3864
Install update from vendor's website.