The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering.
CVSS Score
5.0
EPSS Score
0.017
Published
1998-09-01
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
CVSS Score
5.0
EPSS Score
0.011
Published
1998-08-18
Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.
CVSS Score
3.5
EPSS Score
0.011
Published
1998-08-12
AAA authentication on Cisco systems allows attackers to execute commands without authorization.
CVSS Score
7.5
EPSS Score
0.026
Published
1998-01-01
Buffer overflow in Cisco 7xx routers through the telnet service.
CVSS Score
5.0
EPSS Score
0.011
Published
1997-12-15
Land IP denial of service.
CVSS Score
5.0
EPSS Score
0.957
Published
1997-12-01
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections.
CVSS Score
7.5
EPSS Score
0.012
Published
1997-10-01
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
CVSS Score
4.0
EPSS Score
0.322
Published
1997-08-01
In Cisco IOS 10.3, with the tacacs-ds or tacacs keyword, an extended IP access control list could bypass filtering.
CVSS Score
7.5
EPSS Score
0.017
Published
1995-07-31
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
EPSS Score
0.014
Published
1992-12-10