CVEs (613)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters. |
Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port. |
The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering. |
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service. |
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. |
AAA authentication on Cisco systems allows attackers to execute commands without authorization. |
Buffer overflow in Cisco 7xx routers through the telnet service. |
6Cisco GnuHp+3 more8Hp Ux InetIos+5 moreApr 16, 2026 Dec 1, 1997 N/A· v4 N/A· v3 5.0 MEDIUM· v2 Land IP denial of service. |
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections. |
11Apple CiscoHp+8 more14Aix BsdosHp Ux+11 moreMay 28, 2026 Aug 1, 1997 N/A· v4 4.0 MEDIUM· v3 2.1 LOW· v2 ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts. |
In Cisco IOS 10.3, with the tacacs-ds or tacacs keyword, an extended IP access control list could bypass filtering. |
Vulnerability in Cisco routers versions 8.2 through 9.1 allows remote attackers to bypass access control lists when extended IP access lists are used on certain interfaces, the IP route cache is enabled, and the access l...Show more |
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. |