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Cisco IOS and IOS XE Software DHCP Client Denial of Service Vulnerability

Information

Severity

Severity

High

Family

Family

CISCO

CVSSv2 Base

CVSSv2 Base

7.8

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

4 years ago

Summary

A vulnerability in the DHCP client implementation of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.

Insight

Insight

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.

Detection Method

Detection Method

Checks if a vulnerable version is present on the target host.

Solution

Solution

See the referenced vendor advisory for a solution.

Common Vulnerabilities and Exposures (CVE)