HIGH · 7.5

CVE-1999-1306

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.

Vulnerability 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.

CVSS Score

7.5

HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P
Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
PARTIAL

Affected Products

VendorProductVersions
CiscoIos<= 9.1

References

FAQ

What is CVE-1999-1306?

CVE-1999-1306 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.

How severe is CVE-1999-1306?

CVE-1999-1306 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-1999-1306?

Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios.