CVE-1999-1466

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 1992-12-10 · updated 2026-06-16

Description

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.

Affected products

Cisco IOS: 8.2, 8.3, 9.0, 9.1

References

http://www.cert.org/advisories/CA-1992-20.html
http://www.securityfocus.com/bid/53
http://www.cert.org/advisories/CA-1992-20.html
http://www.securityfocus.com/bid/53

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