CVE-1999-0775: Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling
Summary
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:46.996Z · Confidence: high
Impact
Based on CVSS vector: n/a — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.