CVE-1999-1129

HIGH · CVSS 7.5 EPSS 1.60%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 1999-09-01 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE

CVE-1999-1129

Severity

HIGH

CVSS

7.5

EPSS

1.60%

Cisco

Original 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.