CVE-2017-12232

6.5 MEDIUM CISA KEV - Actively Exploited
Published: September 29, 2017 Modified: October 22, 2025

Description

A vulnerability in the implementation of a protocol in Cisco Integrated Services Routers Generation 2 (ISR G2) Routers running Cisco IOS 15.0 through 15.6 could allow an unauthenticated, adjacent attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to a misclassification of Ethernet frames. An attacker could exploit this vulnerability by sending a crafted Ethernet frame to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc03809.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/101044
Source: psirt@cisco.com
Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039452
Source: psirt@cisco.com
Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/101044
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039452
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.5 / 10.0
EPSS (Exploit Probability)
1.0%
76th percentile
Exploitation Status
Actively Exploited
Remediation due: 2022-03-24

Weaknesses (CWE)

Affected Vendors

cisco