# CVE-2018-0173: A Cisco IOS and IOS XE Software bug is being used in attacks

Status: Being used now (CISA KEV, added 2022-03-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Cisco IOS and IOS XE Software (CVE-2018-0173) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2018-0173. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

## Official 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).

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

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.