CVE-2011-2059

Description

The ipv6 component in Cisco IOS before 15.1(4)M1.3 allows remote attackers to conduct fingerprinting attacks and obtain potentially sensitive information about the presence of the IOS operating system via an ICMPv6 Echo Request packet containing a Hop-by-Hop (HBH) extension header (EH) with a 0x0c01050c value in the PadN option data, aka Bug ID CSCtq02219.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.22%
Vendor Advisory cisco.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://tools.cisco.com/security/center/viewIpsSignature.x?signatureId=36606&signatureSubId=0 vendor advisory
http://blogs.cisco.com/security/1999tcp-redux-the-ipv6-flavor broken link

Frequently Asked Questions

What is the severity of CVE-2011-2059?
CVE-2011-2059 has been scored as a medium severity vulnerability.
How to fix CVE-2011-2059?
To fix CVE-2011-2059, 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-2011-2059 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-2059 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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