TI-2008-04717 Aliases CVE-2008-4963 GHSA-7hp5-2w63-5xvj

Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS…

LOW 35Published 2008-11-06 · Updated 2024-08-07

Key facts

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

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

Summary

Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS and CatOS, when the VTP operating mode is not transparent, allows remote attackers to cause a denial of service (device reload or hang) via a crafted VTP packet sent to a switch interface configured as a trunk port.

Why it matters now

EPSS 0.01684 77th 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 · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:cisco:catos::::::::	all versions	Vulnerable	Cisco
cpe:2.3:o:cisco:ios::::::::	all versions	Vulnerable	Cisco

cpe:2.3:o:cisco:catos:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2008-4963
2026-10-03 Alias added: GHSA-7hp5-2w63-5xvj

References

Advisory 1

20081105 Cisco VLAN Trunking Protocol Vulnerability

Other 1

49601

TI-2001-00041 Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote… CVSS 2.0HIGH 7.8
TI-2003-00200 Unknown vulnerability in Cisco Catalyst 7.5(1) allows local users to bypass… CVSS 2.0HIGH 9.3
TI-2002-01178 Buffer overflow in the embedded HTTP server for Cisco Catalyst switches running CatOS 5.4… CVSS 2.0HIGH 7.1
TI-2006-04612 The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote… CVSS 2.0HIGH 7.8
TI-2005-04003 Unspecified Cisco Catalyst Switches allow remote attackers to cause a denial of service… CVSS 2.0HIGH 7.8
TI-2002-00996 Cisco IOS 12.0 through 12.2, when supporting SSH, allows remote attackers to cause a… CVSS 2.0HIGH 7.1

See all 16 →

Sources

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