Input validation

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition. The vulnerability is due to improper validation of packet data. A...

CVE-2018-0156

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition. The vulnerability is due to improper validation of packet data. A...

CVE-2018-0171

CVE-2018-0171 is a Cisco Smart Install remote code execution vulnerability in Cisco IOS/IOS XE where improper validation of packet data allows an unauthenticated, remote attacker to trigger a device reload (DoS) or execute arbitrary code by sending a crafted Smart Install message to TCP port 4786...

CVE-2018-0171

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition, or to execute arbitrary code on an affected device. The...

CVE-2018-0171

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition, or to execute arbitrary code on an affected device. The...

CVE-2018-0156

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition. The vulnerability is due to improper validation of packet data. A...

CVE-2018-0156

CVE-2018-0156 concerns Cisco IOS/IOS XE Smart Install DoS. The vulnerability arises from improper validation of Smart Install packet data, allowing an unauthenticated, remote attacker to trigger a device reload via a crafted packet sent to TCP port 4786. Affected are Cisco devices configured as S...

Cisco Patches Two Critical RCE Bugs in IOS XE Software

Three critical vulnerabilities were patched by Cisco Systems on Wednesday, each tied to the company’s widely used internetworking operating system IOS XE. Two of the bugs are remote code execution vulnerabilities that could allow an attacker to take control over affected systems. The critical bug...

Cisco IOS and IOS XE Software Smart Install Denial of Service Vulnerability

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition. The vulnerability is due to improper validation of packet data. A...

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

Update August 20, 2025: Cisco is aware of continued exploitation activity of the vulnerability that is described in this advisory and strongly recommends that customers assess their systems and upgrade to a fixed software release as soon as possible. A vulnerability in the Smart Install feature o...

CVE-2018-0156

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition. The vulnerability is due to improper validation of packet data. A...

CVE-2018-0171

A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service DoS condition, or to execute arbitrary code on an affected device. The...

PT-2018-1101

Name of the Vulnerable Software and Affected Versions Cisco IOS and IOS XE Software affected versions not specified Description A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an...

Cisco Releases Security Updates

Cisco has released updates to address vulnerabilities affecting multiple products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. NCCIC/US-CERT encourages users and administrators to review the following Cisco Security Advisories and apply the...

PT-2018-1189 · Cisco · Cisco Ios Xe +1

Name of the Vulnerable Software and Affected Versions: Cisco IOS Software and Cisco IOS XE Software affected versions not specified Description: The issue is related to the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software, where improper validation of packet data could allow ...

Cisco Smart Install Detection

Binary data ciscosmartinstalldetect.nbin...

Identify Cisco Smart Install endpoints

This module attempts to connect to the specified Cisco Smart Install port and determines if it speaks the Smart Install Protocol. Exposure of SMI to untrusted networks can allow complete compromise of the switch. This module requires Metasploit: https://metasploit.com/download Current source:...

Cisco IOS Smart Install Protocol Misuse (cisco-sr-20170214-smi)

The remote Cisco IOS device has the Smart Install feature enabled. The Smart Install SMI protocol does not require authentication by design. The absence of an authorization or authentication mechanism in the SMI protocol between the integrated branch clients IBC and the director can allow a clien...

Cisco IOS XE Smart Install Protocol Misuse (cisco-sr-20170214-smi)

The remote Cisco IOS XE device has the Smart Install Feature enabled. The Smart Install SMI protocol does not require authentication by design. The absence of an authorization or authentication mechanism in the SMI protocol between the integrated branch clients IBC and the director can allow a...

Cisco Smart Install (SMI) Protocol Misuse (cisco-sa-20170214-smi) - Unreliable Check

Cisco is aware of a significant increase in Internet scans attempting to detect devices where, after completing setup, the Smart Install feature remains enabled and without proper security controls. This could leave the involved devices susceptible to misuse of the feature. Customers who have not...