Cisco IOS DHCP Multiple Vulnerabilities

high Nessus Plugin ID 109087


The remote device is missing a vendor-supplied security patch.


According to its self-reported version, the Cisco IOS software running on the remote device is affected by multiple denial of service vulnerabilities in the DHCP client implementation when parsing DHCP packets. An unauthenticated, remote attacker can exploit these issues, via specially crafted DHCP packets, to cause the device to reload.


Upgrade to the relevant fixed version referenced in Cisco bug ID CSCvg62730, CSCvg62754, and CSCuh91645.

See Also

Plugin Details

Severity: High

ID: 109087

File Name: cisco-sa-20180328-dhcpr3-ios.nasl

Version: 1.11

Type: combined

Family: CISCO

Published: 4/17/2018

Updated: 4/25/2023

Supported Sensors: Nessus

Risk Information


Risk Factor: Medium

Score: 6.0


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2018-0174


Risk Factor: High

Base Score: 8.6

Temporal Score: 8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:cisco:ios

Required KB Items: Host/Cisco/IOS/Version

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/28/2018

Vulnerability Publication Date: 3/28/2018

CISA Known Exploited Vulnerability Due Dates: 3/17/2022

Reference Information

CVE: CVE-2018-0172, CVE-2018-0173, CVE-2018-0174

BID: 103545, 103552, 103554