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CVE-2015-6279

7.8 · HIGH

The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E before 3.6.3E; 3.…

Published Sep 28, 2015ciscoCWE-20EPSS 3.22%

Overview

CVE-2015-6279 is a high-severity vulnerability affecting cisco ios. It was published on September 28, 2015 and has a CVSS 2.0 base score of 7.8 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E before 3.6.3E; 3.7E before 3.7.2E; 3.9S and 3.10S before 3.10.6S; 3.11S before 3.11.4S; 3.12S and 3.13S before 3.13.3S; and 3.14S before 3.14.2S allows remote attackers to cause a denial of service (device reload) via a malformed ND packet with the Cryptographically Generated Address (CGA) option, aka Bug ID CSCuo04400.

Remediation

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-fhsReftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-fhs/cvrf/cisco-sa-20150923-fhs_cvrf.xmlRefwww.securitytracker.com/id/1033647Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-fhsReftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150923-fhs/cvrf/cisco-sa-20150923-fhs_cvrf.xmlRefwww.securitytracker.com/id/1033647

How CyberStrike helps

Frequently asked questions

What is CVE-2015-6279?

CVE-2015-6279 is a high-severity vulnerability affecting cisco ios. It was published on September 28, 2015 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2015-6279?

This vulnerability has a CVSS 2.0 base score of 7.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2015-6279?

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2015-6279?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-6279 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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