CVE-2017-12232

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.

Score
CVSS 3.1 6.5 Medium
Status
Analyzed - psirt@cisco.com
Published
2017-09-29
Last modified
2026-01-12
Known exploited (CISA KEV)
since 2022-03-03, action due 2022-03-24: Apply updates per vendor instructions.
Weaknesses
CWE-399

Affected products

References