Vulnerability Monitor

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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 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.

Security Impact Summary

CVE-2008-4963 is a security vulnerability that . Impacting 2 products from cisco, from cisco organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2008, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2008-11-06T15:55:51.713

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:C

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: COMPLETE

Exploitability Score

8.6

Impact Score

6.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	cisco	catos	*	Yes
Operating System	cisco	ios	*	Yes

References

http://osvdb.org/49601 ([email protected])
http://secunia.com/advisories/32573 Vendor Advisory ([email protected])
http://securitytracker.com/id?1021143 ([email protected])
http://www.cisco.com/en/US/products/products_security_response09186a0080a231cf.html Vendor Advisory ([email protected])
http://www.securityfocus.com/bid/32120 ([email protected])
http://www.securitytracker.com/id?1021144 ([email protected])
https://exchange.xforce.ibmcloud.com/vulnerabilities/46346 ([email protected])
http://osvdb.org/49601 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/32573 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://securitytracker.com/id?1021143 (af854a3a-2127-422b-91ae-364da2661108)
http://www.cisco.com/en/US/products/products_security_response09186a0080a231cf.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/32120 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id?1021144 (af854a3a-2127-422b-91ae-364da2661108)
https://exchange.xforce.ibmcloud.com/vulnerabilities/46346 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For cisco's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.