CVE-2011-2395

Description

The Neighbor Discovery (ND) protocol implementation in Cisco IOS on unspecified switches allows remote attackers to bypass the Router Advertisement Guarding functionality via a fragmented IPv6 packet in which the Router Advertisement (RA) message is contained in the second fragment, as demonstrated by (1) a packet in which the first fragment contains a long Destination Options extension header or (2) a packet in which the first fragment contains an ICMPv6 Echo Request message.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.15%
Third-Party Advisory securityreason.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://seclists.org/fulldisclosure/2011/May/446 mailing list
http://securityreason.com/securityalert/8271 third party advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/67940 vdb entry

Frequently Asked Questions

What is the severity of CVE-2011-2395?
CVE-2011-2395 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2395?
To fix CVE-2011-2395, 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-2011-2395 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2395 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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