Vulnerabilities > Cisco > IOS

DATE CVE VULNERABILITY TITLE RISK
1999-09-01 CVE-1999-1129 Unspecified vulnerability in Cisco Catalyst 2900 Vlan and IOS
Cisco Catalyst 2900 Virtual LAN (VLAN) switches allow remote attackers to inject 802.1q frames into another VLAN by forging the VLAN identifier in the trunking tag.
network
low complexity
cisco
7.5
1999-06-10 CVE-1999-0775 Unspecified vulnerability in Cisco IOS 11.2(14)Gs2/11.2(15)G
Cisco Gigabit Switch routers running IOS allow remote attackers to forward unauthorized packets due to improper handling of the "established" keyword in an access list.
network
low complexity
cisco
critical
10.0
1999-04-01 CVE-1999-0445 Unspecified vulnerability in Cisco IOS
In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters.
network
low complexity
cisco
5.0
1999-01-11 CVE-1999-0063 Unspecified vulnerability in Cisco IOS
Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port.
network
low complexity
cisco
5.0
1998-09-01 CVE-1999-0162 Unspecified vulnerability in Cisco IOS 11.2
The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering.
network
low complexity
cisco
5.0
1998-08-18 CVE-1999-0157 Unspecified vulnerability in Cisco IOS and PIX Firewall Software
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
network
low complexity
cisco
5.0
1998-08-12 CVE-1999-0159 Unspecified vulnerability in Cisco IOS
Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login).
network
low complexity
cisco
5.0
1997-12-15 CVE-1999-0230 Unspecified vulnerability in Cisco IOS 4.1/4.1.1/4.1.2
Buffer overflow in Cisco 7xx routers through the telnet service.
network
low complexity
cisco
5.0
1997-12-01 CVE-1999-0016 Land IP denial of service.
network
low complexity
cisco gnu microsoft hp netbsd sun
5.0
1997-10-01 CVE-1999-0160 Unspecified vulnerability in Cisco IOS
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections.
network
low complexity
cisco
7.5