CVE-1999-1582: By design, the "established" command on the Cisco PIX firewall allows connections from one host to arbitrary ports of a

Published n/a Updated 2026-08-21T04:30:40.640Z

Summary

By design, the "established" command on the Cisco PIX firewall allows connections from one host to arbitrary ports of a target host if an alternative conduit has already been allowed, which can cause administrators to configure less restrictive access controls than intended if they do not understand this functionality.

Severity

UNKNOWN

Source Attribution

Source: NVD · Updated: 2026-08-21T04:30:40.640Z · 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.

References