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CVE-2003-0556

5.0 · MEDIUM

Polycom MGC 25 allows remote attackers to cause a denial of service (crash) via a large number of "user" requests to the control port 5003, as demonstrated using the blast TCP stress tester.

Published Aug 18, 2003polycomEPSS 1.26%

Overview

CVE-2003-0556 is a medium-severity vulnerability affecting polycom mgc-100. It was published on August 18, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Polycom MGC 25 allows remote attackers to cause a denial of service (crash) via a large number of "user" requests to the control port 5003, as demonstrated using the blast TCP stress tester.

Remediation

Check the references section for vendor advisories and patches from polycom. Update mgc-100 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

Reflists.grok.org.uk/pipermail/full-disclosure/2003-July/006494.htmlRefmarc.info/?l=bugtraq&m=105804648003163&w=2Reflists.grok.org.uk/pipermail/full-disclosure/2003-July/006494.htmlRefmarc.info/?l=bugtraq&m=105804648003163&w=2

How CyberStrike helps

Frequently asked questions

What is CVE-2003-0556?

CVE-2003-0556 is a medium-severity vulnerability affecting polycom mgc-100. It was published on August 18, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2003-0556?

This vulnerability has a CVSS 2.0 base score of 5.0, 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-2003-0556?

Check the references section for vendor advisories and patches from polycom. Update mgc-100 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-2003-0556?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-0556 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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