What’s Vulnerable › Vulnerabilities

CVE-1999-1582

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 1998-07-15 · updated 2026-06-16

Description

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.

Affected products

• Cisco Pix Firewall: all versions

References

• http://www.cisco.com/warp/public/707/pixest-pub.shtml
• http://www.kb.cert.org/vuls/id/6733
• https://exchange.xforce.ibmcloud.com/vulnerabilities/8052
• http://www.cisco.com/warp/public/707/pixest-pub.shtml
• http://www.kb.cert.org/vuls/id/6733
• https://exchange.xforce.ibmcloud.com/vulnerabilities/8052

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