What’s Vulnerable › Vulnerabilities

CVE-2003-0556

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2003-08-18 · updated 2026-06-16

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.

Affected products

• Polycom Mgc-100: all versions
• Polycom Mgc-25: 5.51.21, 5.51.211
• Polycom Mgc-50: all versions

References

• http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/006494.html
• http://marc.info/?l=bugtraq&m=105804648003163&w=2
• http://lists.grok.org.uk/pipermail/full-disclosure/2003-July/006494.html
• http://marc.info/?l=bugtraq&m=105804648003163&w=2

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