CVE Catalog

CVE-1999-1466

High
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

High risk
2.32%

81th percentile - higher than 81% of all known CVEs

Summary

Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the 'established' keyword.

Risk Assessment

Organizations may be exposed to unauthorized access to network resources, potentially leading to serious security incidents.

Recommendation

It is recommended to update Cisco routers to the latest versions that address this vulnerability and to review and adjust access control list configurations.

Related vulnerabilities

Original NVD description (English source)

Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access list uses the "established" keyword.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS