CVE-2018-0173—Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

PUBLISHEDvulnerability record
2022-03-03 · last modified June 21, 2025

Metadata

CVE ID:
CVE-2018-0173
Project:
Cisco
Product:
IOS and IOS XE Software
Date Added:
2022-03-03
Due Date:
2022-03-17
Last Updated:
June 21, 2025

Vulnerability Name

Cisco IOS and IOS XE Software Improper Input Validation Vulnerability

Description

A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets can allow for denial-of-service (DoS).

Known To Be Used in Ransomware Campaigns?

Ransomware Status:
Unknown

Action

Apply updates per vendor instructions.

Additional Notes

  • https://nvd.nist.gov/vuln/detail/CVE-2018-0173

Related Weaknesses

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