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CVE-2018-0171: Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability
Cisco IOS and IOS XE · in CISA KEV since 2021-11-03
2021-11-03added to KEV
2022-05-03federal remediation due date
99.48%EPSS exploit probability (30 days) 99.9th percentile
9.8 CRITICALCVSS 3.1
Unknownknown ransomware use
1,316days from NVD publication to KEV
What it is
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 (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD published | 2018-03-28 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2018-0171.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.