← Back

Cisco

cisco

6,668 CVEs • 6,229 products

Products (6,229)

Click to collapse
Toggle
Ios
ios
Ios Xe
ios_xe
Nx Os
nx_os
Ios Xr
ios_xr
Asyncos
asyncos
Asa 5500
asa_5500
Jabber
jabber
Roomos
roomos

CVEs (6,668)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Cisco
1Cache Engine
Apr 16, 2026
Dec 16, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The web administration interface for Cisco Cache Engine allows remote attackers to view performance statistics.
1Cisco
1Cache Engine
Apr 16, 2026
Dec 16, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco Cache Engine allows an attacker to replace content in the cache.
1Cisco
1Router
Apr 16, 2026
Nov 4, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Denial of service in Cisco routers running NAT via a PORT command from an FTP client to a Telnet port.
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.
1Cisco
1Ciscosecure
Apr 16, 2026
Aug 19, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
A default configuration of CiscoSecure Access Control Server (ACS) allows remote users to modify the server database without authentication.
1Cisco
1675 Router
Apr 16, 2026
Jul 1, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco 675 routers running CBOS allow remote attackers to establish telnet sessions if an exec or superuser password has not been set.
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.
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.
1Cisco
1Cisco 7xx Routers
Apr 16, 2026
Mar 11, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Vulnerability in Cisco 7xx series routers allows a remote attacker to cause a system reload via a TCP connection to the router's TELNET port.
1Cisco
1Cisco 7xx Routers
Apr 16, 2026
Mar 11, 1999
N/A· v4
N/A· v3
7.5 HIGH· v2
The HTTP server in Cisco 7xx series routers 3.2 through 4.2 is enabled by default, which allows remote attackers to change the router's configuration.
1Cisco
3Catalyst 12xx Supervisor Software
Catalyst 29xx Supervisor SoftwareCatalyst 5xxx Supervisor Software
Apr 16, 2026
Mar 1, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco Catalyst LAN switches running Catalyst 5000 supervisor software allows remote attackers to perform a denial of service by forcing the supervisor module to reload.
1Cisco
1Router
Apr 16, 2026
Mar 1, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Denial of service in Cisco IOS web server allows attackers to reboot the router using a long URL.
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.
1Cisco
1Router
Apr 16, 2026
Jan 1, 1999
N/A· v4
N/A· v3
5.0 MEDIUM· v2
An attacker can identify a CISCO device by sending a SYN packet to port 1999, which is for the Cisco Discovery Protocol (CDP).
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.
1Cisco
1Pix Firewall Software
Apr 16, 2026
Aug 31, 1998
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco PIX firewall manager (PFM) on Windows NT allows attackers to connect to port 8080 on the PFM server and retrieve any file whose name and location is known.
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.
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.
1Cisco
1Pix Firewall
Apr 16, 2026
Jul 15, 1998
N/A· v4
N/A· v3
7.5 HIGH· v2
By design, the "established" command on the Cisco PIX firewall allows connections from one host to arbitrary ports of a target host if an alternative conduit has already been allowed, which can cause administrators to co...Show more
By design, the "established" command on the Cisco PIX firewall allows connections from one host to arbitrary ports of a target host if an alternative conduit has already been allowed, which can cause administrators to configure less restrictive access controls than intended if they do not understand this functionality.Show less
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.