CVE-2017-12232

Known Exploited

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.58% Top 20%
KEV Since 
Vendor Advisory cisco.com
Affected: n/a Cisco IOS
Published at:
Updated at:

References

Link Tags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-rbip-dos vendor advisory
http://www.securitytracker.com/id/1039452 vdb entry third party advisory broken link
http://www.securityfocus.com/bid/101044 vdb entry third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2017-12232?
CVE-2017-12232 has been scored as a medium severity vulnerability.
How to fix CVE-2017-12232?
To fix CVE-2017-12232, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-12232 being actively exploited in the wild?
It is confirmed that CVE-2017-12232 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-12232?
CVE-2017-12232 affects n/a Cisco IOS.
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