CVE-1999-1306

no score yetEPSS 1.4%

cisco ios: no CVSS score yet. EPSS 1.4% chance of exploitation in the next 30 days.

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.

EPSS: 1.4% chance of exploitation in the next 30 days; higher than 72% of CVEs (scores of 2026-10-31)
Published: 1992-12-10
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

cisco:ios

References

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

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