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CVE-2017-3803

4.7 · MEDIUM

A vulnerability in the Cisco IOS Software forwarding queue of Cisco 2960X and 3750X switches could allow an unauthenticated, adjacent attacker to cause a memory leak in the software forwarding queu…

Published Jan 26, 2017CWE-772EPSS 0.56%

Overview

CVE-2017-3803 is a medium-severity vulnerability. It was published on January 26, 2017 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

A vulnerability in the Cisco IOS Software forwarding queue of Cisco 2960X and 3750X switches could allow an unauthenticated, adjacent attacker to cause a memory leak in the software forwarding queue that would eventually lead to a partial denial of service (DoS) condition. More Information: CSCva72252. Known Affected Releases: 15.2(2)E3 15.2(4)E1. Known Fixed Releases: 15.2(2)E6 15.2(4)E3 15.2(5)E1 15.2(5.3.28i)E1 15.2(6.0.49i)E 3.9(1)E.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.securityfocus.com/bid/95632Refwww.securitytracker.com/id/1037657Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-catalystRefwww.securityfocus.com/bid/95632Refwww.securitytracker.com/id/1037657Reftools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170118-catalyst

How CyberStrike helps

Frequently asked questions

What is CVE-2017-3803?

CVE-2017-3803 is a medium-severity vulnerability. It was published on January 26, 2017 and has a CVSS 3.0 base score of 4.7 (MEDIUM).

How severe is CVE-2017-3803?

This vulnerability has a CVSS 3.0 base score of 4.7, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2017-3803?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2017-3803?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-3803 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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