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 affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted packet to an affected device on TCP port 4786. Only Smart Install client switches are affected. Cisco devices that are configured as a Smart Install director are not affected by this vulnerability. Cisco Bug IDs: CSCvd40673.
Published: 2018-03-28
Score: 7.5 High
EPSS: 15.5% Moderate
KEV: Yes
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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History

Wed, 22 Oct 2025 00:15:00 +0000


Tue, 21 Oct 2025 20:30:00 +0000


Tue, 21 Oct 2025 19:30:00 +0000


Fri, 15 Nov 2024 18:15:00 +0000

Type Values Removed Values Added
Metrics kev

{'dateAdded': '2022-03-03'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'active', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-01-12T21:54:00.542Z

Reserved: 2017-11-27T00:00:00.000Z

Link: CVE-2018-0156

cve-icon Vulnrichment

Updated: 2024-08-05T03:14:16.905Z

cve-icon NVD

Status : Analyzed

Published: 2018-03-28T22:29:00.467

Modified: 2026-01-13T22:22:01.690

Link: CVE-2018-0156

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses