Unrated severityNVD Advisory· Published Sep 1, 1999· Updated Apr 16, 2026
CVE-1999-1129
CVE-1999-1129
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 products
2- cpe:2.3:o:cisco:ios:11.2\(8\)sa5:*:*:*:*:*:*:*
- cpe:2.3:h:cisco:catalyst_2900_vlan:*:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- www.securityfocus.com/archive/1/26008nvdPatchVendor Advisory
- www.securityfocus.com/bid/615nvdPatchVendor Advisory
- www.cisco.com/univercd/cc/td/doc/product/lan/28201900/1928v8x/eescg8x/aleakyv.htmnvdVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/3294nvd
News mentions
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