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Vulnerability Score 7.5 7.5
CVE Id CVE-1999-1306
Last Modified 05 Sep 2008 04:19:12
Published 10 Dec 1992 12:00:00
Confidentiality Impact PARTIAL PARTIAL
Integrity Impact PARTIAL PARTIAL
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE



Cisco IOS 9.1 and earlier does not properly handle extended IP access lists when the IP route cache is enabled and the "established" keyword is set, which could allow attackers to bypass filters.

Vulnerable Systems

Operating System

  • Cisco Ios 9.1


CERT - CA-1992-20

Last Updated: 27 May 2016 10:35:22