Unrated severityNVD Advisory· Published Dec 10, 1992· Updated Apr 16, 2026

CVE-1999-1306

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.

Affected products

Cisco Systems, Inc./Cisco iOS
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
Range: <=9.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.cert.org/advisories/CA-1992-20.htmlnvdPatchThird Party AdvisoryUS Government Resource

News mentions

No linked articles in our index yet.

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