March 3, 2022 · Applied Cybernetics Group
CVE-2018-0172 — Cisco IOS and IOS XE Software
Cisco IOS and IOS XE Software Improper Input Validation Vulnerability
- Added to KEV
2022-03-03- Federal due date
2022-03-17- Vendor
- Cisco
- Product
- IOS and IOS XE Software
- EPSS
- 91.0th percentile (score 0.062, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-0172
CISA short description
A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
Required action
Apply updates per vendor instructions.