Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2014-3347

5.4 · MEDIUM

Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the ISDN Basic Rate Interface is enabled, allows remote attackers to cause a denial of service (device hang) by leveraging knowledge of the ISDN…

Published Aug 28, 2014ciscoCWE-399EPSS 0.98%

Overview

CVE-2014-3347 is a medium-severity vulnerability affecting cisco ios. It was published on August 28, 2014 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco IOS 15.1(4)M2 on Cisco 1800 ISR devices, when the ISDN Basic Rate Interface is enabled, allows remote attackers to cause a denial of service (device hang) by leveraging knowledge of the ISDN phone number to trigger an interrupt timer collision during entropy collection, leading to an invalid state of the hardware encryption module, aka Bug ID CSCul77897.

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/CiscoSecurityNotice/CVE-2014-3347Reftools.cisco.com/security/center/viewAlert.x?alertId=35453Refwww.securityfocus.com/bid/69439Refwww.securitytracker.com/id/1030772Refexchange.xforce.ibmcloud.com/vulnerabilities/95558Reftools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3347Reftools.cisco.com/security/center/viewAlert.x?alertId=35453Refwww.securityfocus.com/bid/69439Refwww.securitytracker.com/id/1030772Refexchange.xforce.ibmcloud.com/vulnerabilities/95558

How CyberStrike helps

Frequently asked questions

What is CVE-2014-3347?

CVE-2014-3347 is a medium-severity vulnerability affecting cisco ios. It was published on August 28, 2014 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

How severe is CVE-2014-3347?

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2014-3347?

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-2014-3347?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-3347 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.

Related MEDIUM CVEs from 2014

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999