CVE-1999-0445: In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filt
Summary
In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters.
Severity
UNKNOWN
Source Attribution
Source: NVD · Updated: 2026-08-21T04:30:44.717Z · 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.