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CVE-1999-1464

Vulnerability in Cisco IOS 11.1CC and 11.1CT with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled interface to an interface that does not have DFS enabled, as described by Cisco bug CSCdk35564.

Published: Dec 31, 1999 Modified: Apr 16, 2026

CVSS Metrics

Affected Products (2)

Vendor Product Version
cisco ios 11.1cc
cisco ios 11.1ct

GitHub Security Advisory GHSA-jgwm-wr7r-95q6

Vulnerability in Cisco IOS 11.1CC and 11.1CT with distributed fast switching (DFS) enabled allows...

Risk Scores

CVSS Score 7.5 / 10
EPSS Score 0.35%

Top 42% most likely to be exploited

Threat Score 30.1 / 100

Data Sources

NVD EPSS GitHub