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CVE-2015-0695

7.8 · HIGH

Cisco IOS XR 4.3.4 through 5.3.0 on ASR 9000 devices, when uRPF, PBR, QoS, or an ACL is configured, does not properly handle bridge-group virtual interface (BVI) traffic, which allows remote attack…

Published Apr 17, 2015ciscoCWE-19EPSS 3.40%

Overview

CVE-2015-0695 is a high-severity vulnerability affecting cisco ios_xr. It was published on April 17, 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

Cisco IOS XR 4.3.4 through 5.3.0 on ASR 9000 devices, when uRPF, PBR, QoS, or an ACL is configured, does not properly handle bridge-group virtual interface (BVI) traffic, which allows remote attackers to cause a denial of service (chip and card hangs and reloads) by triggering use of a BVI interface for IPv4 packets, aka Bug ID CSCur62957.

Remediation

Check the references section for vendor advisories and patches from cisco. Update ios_xr 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-20150415-iosxrRefwww.securityfocus.com/bid/74162Refwww.securitytracker.com/id/1032139Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150415-iosxrRefwww.securityfocus.com/bid/74162Refwww.securitytracker.com/id/1032139

How CyberStrike helps

Frequently asked questions

What is CVE-2015-0695?

CVE-2015-0695 is a high-severity vulnerability affecting cisco ios_xr. It was published on April 17, 2015 and has a CVSS 2.0 base score of 7.8 (HIGH).

How severe is CVE-2015-0695?

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-2015-0695?

Check the references section for vendor advisories and patches from cisco. Update ios_xr 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-2015-0695?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2015-0695 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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