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Vendor: Cisco • 618 CVEs

CVEs (618)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
CVE-1999-1465
1Cisco
1Ios
Apr 16, 2026
Dec 31, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interfac...Show more
Vulnerability in Cisco IOS 11.1 through 11.3 with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled input interface to an output interface with a logical subinterface, as described by Cisco bug CSCdk43862.Show less
CVE-1999-1464
1Cisco
1Ios
Apr 16, 2026
Dec 31, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
Vulnerability in Cisco IOS 11.1CC and 11.1CT with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled interface to a...Show more
Vulnerability in Cisco IOS 11.1CC and 11.1CT with distributed fast switching (DFS) enabled allows remote attackers to bypass certain access control lists when the router switches traffic from a DFS-enabled interface to an interface that does not have DFS enabled, as described by Cisco bug CSCdk35564.Show less
CVE-1999-1175
1Cisco
1Ios
Apr 16, 2026
Dec 31, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
Web Cache Control Protocol (WCCP) in Cisco Cache Engine for Cisco IOS 11.2 and earlier does not use authentication, which allows remote attackers to redirect HTTP traffic to arbitrary hosts via WCCP packets to UDP port 2...Show more
Web Cache Control Protocol (WCCP) in Cisco Cache Engine for Cisco IOS 11.2 and earlier does not use authentication, which allows remote attackers to redirect HTTP traffic to arbitrary hosts via WCCP packets to UDP port 2048.Show less
CVE-1999-1129
1Cisco
2Catalyst 2900 Vlan
Ios
Apr 16, 2026
Sep 1, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
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.
CVE-1999-0775
1Cisco
1Ios
Apr 16, 2026
Jun 10, 1999
N/A· v4
N/A· v3
10.0 HIGH· v2
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.
CVE-1999-0445
1Cisco
1Ios
Apr 16, 2026
Apr 1, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
In Cisco routers under some versions of IOS 12.0 running NAT, some packets may not be filtered by input access list filters.
CVE-1999-0063
1Cisco
1Ios
Apr 16, 2026
Jan 11, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port.
CVE-1999-0162
1Cisco
1Ios
Apr 16, 2026
Sep 1, 1998
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The "established" keyword in some Cisco IOS software allowed an attacker to bypass filtering.
CVE-1999-0157
1Cisco
2Ios
Pix Firewall Software
Apr 16, 2026
Aug 18, 1998
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
CVE-1999-0159
1Cisco
1Ios
Apr 16, 2026
Aug 12, 1998
N/A· v4
3.5 LOW· v3
5.0 MEDIUM· v2
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.
CVE-1999-0293
1Cisco
1Ios
Apr 16, 2026
Jan 1, 1998
N/A· v4
N/A· v3
7.5 HIGH· v2
AAA authentication on Cisco systems allows attackers to execute commands without authorization.
CVE-1999-0230
1Cisco
1Ios
Apr 16, 2026
Dec 15, 1997
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Buffer overflow in Cisco 7xx routers through the telnet service.
CVE-1999-0016
6Cisco
GnuHp+3 more
8Hp Ux
InetIos+5 more
Apr 16, 2026
Dec 1, 1997
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Land IP denial of service.
CVE-1999-0160
1Cisco
1Ios
Apr 16, 2026
Oct 1, 1997
N/A· v4
N/A· v3
7.5 HIGH· v2
Some classic Cisco IOS devices have a vulnerability in the PPP CHAP authentication to establish unauthorized PPP connections.
CVE-1999-0524
11Apple
CiscoHp+8 more
14Aix
BsdosHp Ux+11 more
May 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.
CVE-1999-0161
1Cisco
1Ios
Apr 16, 2026
Jul 31, 1995
N/A· v4
N/A· v3
7.5 HIGH· v2
In Cisco IOS 10.3, with the tacacs-ds or tacacs keyword, an extended IP access control list could bypass filtering.
CVE-1999-1466
1Cisco
1Ios
Apr 16, 2026
Dec 10, 1992
N/A· v4
N/A· v3
7.5 HIGH· v2
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
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 list uses the "established" keyword.Show less
CVE-1999-1306
1Cisco
1Ios
Apr 16, 2026
Dec 10, 1992
N/A· v4
N/A· v3
7.5 HIGH· v2
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.