HIGH · 7.5

CVE-1999-1129

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.

Vulnerability 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 Score

7.5

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL

Affected Products

VendorProductVersions
CiscoIos11.2\(8\)sa5
CiscoCatalyst 2900 VlanAll versions

References

FAQ

What is CVE-1999-1129?

CVE-1999-1129 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-1999-1129?

CVE-1999-1129 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-1999-1129?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco Catalyst 2900 Vlan.