TI-2003-00524 Aliases CVE-2003-0556 GHSA-pcqp-c29m-vvc7

Polycom MGC 25 allows remote attackers to cause a denial of service (crash) via a large…

LOW 25Published 2003-07-15 · Updated 2024-08-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: — Not recorded in CVSS 2.0
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: None · None · Partial
Fix status: No fix listed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

EPSS 0.01258 69th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPE	Versions	Role	Vendor
cpe:2.3:h:polycom:mgc-100::::::::	all versions	Vulnerable	Polycom
cpe:2.3:h:polycom:mgc-25:5.51.21:::::::*	5.51.21	Vulnerable	Polycom
cpe:2.3:h:polycom:mgc-25:5.51.211:::::::*	5.51.211	Vulnerable	Polycom
cpe:2.3:h:polycom:mgc-50::::::::	all versions	Vulnerable	Polycom

cpe:2.3:h:polycom:mgc-100:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Polycom
cpe:2.3:h:polycom:mgc-25:5.51.21:*:*:*:*:*:*:* Versions 5.51.21 Vulnerable ·Polycom
cpe:2.3:h:polycom:mgc-25:5.51.211:*:*:*:*:*:*:* Versions 5.51.211 Vulnerable ·Polycom
cpe:2.3:h:polycom:mgc-50:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Polycom

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2003-0556
2026-10-03 Alias added: GHSA-pcqp-c29m-vvc7

References

Other 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences