CVE-2015-4199

Description

Race condition in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (NULL pointer free and module crash) by triggering intermittent connectivity with many IPv6 CPE devices, aka Bug ID CSCug47366.

Category

7.1
CVSS
Severity: High
CVSS 2.0 •
EPSS 0.53%
Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1032692 vdb entry third party advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=39423 vendor advisory
http://www.securityfocus.com/bid/75335 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2015-4199?
CVE-2015-4199 has been scored as a high severity vulnerability.
How to fix CVE-2015-4199?
To fix CVE-2015-4199, 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-2015-4199 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2015-4199 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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