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CVE-2008-4963
Unspecified vulnerability in the VLAN Trunking Protocol (VTP) implementation on Cisco IOS and CatOS, when the VTP operating mode is not…
High7.1EPSS 1.7%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 1.7% · top 23% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (7)
- 32573 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20081105 Cisco VLAN Trunking Protocol Vulnerability (opens in a new tab)vendor-advisoryx_refsource_CISCOx_transferred
- 1021143 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 1021144 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- cisco-ios-catos-vtp-dos(46346) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 32120 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 49601 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2008-4963)Record last updated .