CVE Watch—

CVE-2018-0171

Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability

CVSS

—

No CVSS

EPSS

99.5%

p100

KEV

YES

Nov 3, 2021

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

99.5%EPSS · 30 days99.5%

2026-09-162026-10-14

KEV catalog record

Product

Cisco / IOS and IOS XE

Vulnerability

Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

May 3, 2022

Known ransomware use

Summary 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.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2018-0171

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