CVE-1999-1306

N/A Unknown

Published: December 10, 1992 Modified: April 16, 2026

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

http://www.cert.org/advisories/CA-1992-20.html

Source: cve@mitre.org

Patch Third Party Advisory US Government Resource

http://www.cert.org/advisories/CA-1992-20.html

Source: af854a3a-2127-422b-91ae-364da2661108

Patch Third Party Advisory US Government Resource

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

N/A / 10.0

EPSS (Exploit Probability)

0.2%

40th percentile

Exploitation Status

Not in CISA KEV

Affected Vendors

cisco