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

No analysis available yet.

Remediation

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Tracking

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Advisories

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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

Cisco Catalyst 2960-plus 24lc-l Catalyst 2960-plus 24lc-s Catalyst 2960-plus 24pc-l Catalyst 2960-plus 24pc-s Catalyst 2960-plus 24tc-l Catalyst 2960-plus 24tc-s Catalyst 2960-plus 48pst-l Catalyst 2960-plus 48pst-s Catalyst 2960-plus 48tc-l Catalyst 2960-plus 48tc-s Catalyst 2960c-12pc-l Catalyst 2960c-8pc-l Catalyst 2960c-8tc-l Catalyst 2960c-8tc-s Catalyst 2960cg-8tc-l Catalyst 2960cpd-8pt-l Catalyst 2960cpd-8tt-l Catalyst 2960s-24pd-l Catalyst 2960s-24ps-l Catalyst 2960s-24td-l Catalyst 2960s-24ts-l Catalyst 2960s-24ts-s Catalyst 2960s-48fpd-l Catalyst 2960s-48fps-l Catalyst 2960s-48lpd-l Catalyst 2960s-48lps-l Catalyst 2960s-48td-l Catalyst 2960s-48ts-l Catalyst 2960s-48ts-s Catalyst 2960s-f24ps-l Catalyst 2960s-f24ts-l Catalyst 2960s-f24ts-s Catalyst 2960s-f48fps-l Catalyst 2960s-f48lps-l Catalyst 2960s-f48ts-l Catalyst 2960s-f48ts-s Catalyst 2960x-24pd-l Catalyst 2960x-24ps-l Catalyst 2960x-24psq-l Cool Catalyst 2960x-24td-l Catalyst 2960x-24ts-l Catalyst 2960x-24ts-ll Catalyst 2960x-48fpd-l Catalyst 2960x-48fps-l Catalyst 2960x-48lpd-l Catalyst 2960x-48lps-l Catalyst 2960x-48td-l Catalyst 2960x-48ts-l Catalyst 2960x-48ts-ll Catalyst 2960xr-24pd-i Catalyst 2960xr-24ps-i Catalyst 2960xr-24td-i Catalyst 2960xr-24ts-i Catalyst 2960xr-48fpd-i Catalyst 2960xr-48fps-i Catalyst 2960xr-48lpd-i Catalyst 2960xr-48lps-i Catalyst 2960xr-48td-i Catalyst 2960xr-48ts-i Catalyst 3560c-12pc-s Catalyst 3560c-8pc-s Catalyst 3560cg-8pc-s Catalyst 3560cg-8tc-s Catalyst 3560cpd-8pt-s Catalyst 3560x-24p-e Catalyst 3560x-24p-l Catalyst 3560x-24p-s Catalyst 3560x-24t-e Catalyst 3560x-24t-l Catalyst 3560x-24t-s Catalyst 3560x-24u-e Catalyst 3560x-24u-l Catalyst 3560x-24u-s Catalyst 3560x-48p-e Catalyst 3560x-48p-l Catalyst 3560x-48p-s Catalyst 3560x-48pf-e Catalyst 3560x-48pf-l Catalyst 3560x-48pf-s Catalyst 3560x-48t-e Catalyst 3560x-48t-l Catalyst 3560x-48t-s Catalyst 3560x-48u-e Catalyst 3560x-48u-l Catalyst 3560x-48u-s Catalyst 3750x-12s-e Catalyst 3750x-12s-s Catalyst 3750x-24p-e Catalyst 3750x-24p-l Catalyst 3750x-24p-s Catalyst 3750x-24s-e Catalyst 3750x-24s-s Catalyst 3750x-24t-e Catalyst 3750x-24t-l Catalyst 3750x-24t-s Catalyst 3750x-24u-e Catalyst 3750x-24u-l Catalyst 3750x-24u-s Catalyst 3750x-48p-e Catalyst 3750x-48p-l Catalyst 3750x-48p-s Catalyst 3750x-48pf-e Catalyst 3750x-48pf-l Catalyst 3750x-48pf-s Catalyst 3750x-48t-e Catalyst 3750x-48t-l Catalyst 3750x-48t-s Catalyst 3750x-48u-e Catalyst 3750x-48u-l Catalyst 3750x-48u-s Catalyst 4500 Supervisor Engine 6-e Catalyst 4500 Supervisor Engine 6l-e Catalyst 4900m Catalyst 4948e Catalyst 4948e-f Embedded Service 2020 24tc Con Embedded Service 2020 24tc Con B Embedded Service 2020 24tc Ncp Embedded Service 2020 24tc Ncp B Embedded Service 2020 Con Embedded Service 2020 Con B Embedded Service 2020 Ncp Embedded Service 2020 Ncp B Ie-3010-16s-8pc Ie-3010-24tc Ie 2000-16ptc-g Ie 2000-16t67 Ie 2000-16t67p Ie 2000-16tc Ie 2000-16tc-g Ie 2000-16tc-g-e Ie 2000-16tc-g-n Ie 2000-16tc-g-x Ie 2000-24t67 Ie 2000-4s-ts-g Ie 2000-4t Ie 2000-4t-g Ie 2000-4ts Ie 2000-4ts-g Ie 2000-8t67 Ie 2000-8t67p Ie 2000-8tc Ie 2000-8tc-g Ie 2000-8tc-g-e Ie 2000-8tc-g-n Ie 3000-4tc Ie 3000-8tc Ios Ios Xe
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