CVE-2017-12232

MediumCVSS 6.5/10Known exploited (CISA KEV)Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-399

Affected software

Vendor	Product	Versions
n/a	Cisco IOS	Cisco IOS

References

http://www.securityfocus.com/bid/101044Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039452Broken Link, Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dosVendor Advisory
http://www.securityfocus.com/bid/101044Broken Link, Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039452Broken Link, Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dosVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12232US Government Resource

Timeline

Published: Sep 29, 2017
Last modified: Jun 17, 2026
Added to CISA KEV: Mar 3, 2022
NVD status: Analyzed

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