Bypassing Filters in Cisco IOS 9.1 and Earlier with Extended IP Access Lists

CVE-1999-1306 · HIGH Severity

AV:N/AC:L/AU:N/C:P/I:P/A:P

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.

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