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Monday, December 8, 2025
High Published: Sep 01, 1999 Modified: Apr 03, 2025

CVE-1999-1129

7.5 CVSS
0 5 10
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
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Description

Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag.

CVSS Vector Details

Attack Vector Network
Attack Complexity Low
Confidentiality P
Integrity P
Availability P

Affected Software Configurations

  • o cisco ios 11.2\(8\)sa5 * * * * * * *
  • h cisco catalyst_2900_vlan * * * * * * * *

Weaknesses (CWE)

  • NVD-CWE-Other