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CVE-1999-1129

nvd nist
Published: Sep 1, 1999Modified: Apr 16, 2026

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7.5
Vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
Exploitability: 10.0 / Impact: 6.4
Source: NVD

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.

Affected (2)

Cisco
2 products
Ios
Catalyst 2900 Vlan
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Ios
Version 11.2(8)sa5
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Catalyst 2900 Vlan
All versions

References (8)

Source: cve@mitre.org
Vendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
PatchVendor Advisory
Source: cve@mitre.org
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.