November 3, 2021 · Applied Cybernetics Group
CVE-2018-0171 — Cisco IOS and IOS XE
Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Cisco
- Product
- IOS and IOS XE
- EPSS
- 99.8th percentile (score 0.929, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Unknown
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2018-0171
CISA short description
Cisco IOS and IOS XE Software improperly validates packet data, allowing an unauthenticated, remote attacker to trigger a reload of an affected device, cause a denial-of-service (DoS) condition, or perform code execution on the affected device.
Required action
Apply updates per vendor instructions.