Search Results (6788 CVEs found)

CVE Vendors Products Updated CVSS v3.1
CVE-2001-0895 1 Cisco 11 Catalyst 2900xl, Catalyst 2948g-l3, Catalyst 2950 and 8 more 2026-04-16 N/A
Multiple Cisco networking products allow remote attackers to cause a denial of service on the local network via a series of ARP packets sent to the router's interface that contains a different MAC address for the router, which eventually causes the router to overwrite the MAC address in its ARP table.
CVE-2002-1555 1 Cisco 1 Optical Networking Systems Software 2026-04-16 N/A
Cisco ONS15454 and ONS15327 running ONS before 3.4 uses a "public" SNMP community string that cannot be changed, which allows remote attackers to obtain sensitive information.
CVE-2002-1104 1 Cisco 1 Vpn Client 2026-04-16 N/A
Cisco Virtual Private Network (VPN) Client software 2.x.x and 3.x before 3.0.5 allows remote attackers to cause a denial of service (crash) via TCP packets with source and destination ports of 137 (NETBIOS).
CVE-2002-1554 1 Cisco 1 Optical Networking Systems Software 2026-04-16 N/A
Cisco ONS15454 and ONS15327 running ONS before 3.4 stores usernames and passwords in cleartext in the image database for the TCC, TCC+ or XTC, which could allow attackers to gain privileges by obtaining the passwords from the image database or a backup.
CVE-2003-0216 1 Cisco 1 Catos 2026-04-16 N/A
Unknown vulnerability in Cisco Catalyst 7.5(1) allows local users to bypass authentication and gain access to the enable mode without a password.
CVE-2004-1322 1 Cisco 1 Unity Server 2026-04-16 N/A
Cisco Unity 2.x, 3.x, and 4.x, when integrated with Microsoft Exchange, has several hard coded usernames and passwords, which allows remote attackers to gain unauthorized access and change configuration settings or read outgoing or incoming e-mail messages.
CVE-2001-0867 1 Cisco 1 12000 Router 2026-04-16 N/A
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly filter does not properly filter packet fragments even when the "fragment" keyword is used in an ACL, which allows remote attackers to bypass the intended access controls.
CVE-2000-1027 1 Cisco 1 Pix Firewall Software 2026-04-16 N/A
Cisco Secure PIX Firewall 5.2(2) allows remote attackers to determine the real IP address of a target FTP server by flooding the server with PASV requests, which includes the real IP address in the response when passive mode is established.
CVE-2004-0307 1 Cisco 1 Optical Networking Systems Software 2026-04-16 N/A
Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead.
CVE-2001-0080 1 Cisco 3 Catalyst 4000, Catalyst 5000, Catalyst 6000 2026-04-16 N/A
Cisco Catalyst 6000, 5000, or 4000 switches allow remote attackers to cause a denial of service by connecting to the SSH service with a non-SSH client, which generates a protocol mismatch error.
CVE-2001-0019 1 Cisco 2 Arrowpoint, Content Services Switch 2026-04-16 N/A
Arrowpoint (aka Cisco Content Services, or CSS) allows local users to cause a denial of service via a long argument to the "show script," "clear script," "show archive," "clear archive," "show log," or "clear log" commands.
CVE-2001-0866 1 Cisco 1 12000 Router 2026-04-16 N/A
Cisco 12000 with IOS 12.0 and lines card based on Engine 2 does not properly handle an outbound ACL when an input ACL is not configured on all the interfaces of a multi port line card, which could allow remote attackers to bypass the intended access controls.
CVE-2006-4776 1 Cisco 1 Ios 2026-04-16 N/A
Heap-based buffer overflow in the VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to execute arbitrary code via a long VLAN name in a VTP type 2 summary advertisement.
CVE-1999-1464 1 Cisco 1 Ios 2026-04-16 N/A
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.
CVE-2001-0864 1 Cisco 1 12000 Router 2026-04-16 N/A
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not properly handle the implicit "deny ip any any" rule in an outgoing ACL when the ACL contains exactly 448 entries, which can allow some outgoing packets to bypass access restrictions.
CVE-2004-1435 1 Cisco 1 Optical Networking Systems Software 2026-04-16 N/A
Multiple versions of Cisco ONS 15327, ONS 15454, and ONS 15454 SDH, including 4.6(0) and 4.6(1), 4.5(x), 4.1(0) to 4.1(3), 4.0(0) to 4.0(2), and earlier versions, allows remote attackers to cause a denial of service (control card reset) via a large number of TCP connections with an invalid response instead of the final ACK (TCP-ACK).
CVE-2002-1491 1 Cisco 1 Vpn 5000 Client 2026-04-16 N/A
The Cisco VPN 5000 Client for MacOS before 5.2.2 records the most recently used login password in plaintext when saving "Default Connection" settings, which could allow local users to gain privileges.
CVE-2006-4775 1 Cisco 2 Catos, Ios 2026-04-16 N/A
The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) and CatOS allows remote attackers to cause a denial of service by sending a VTP update with a revision value of 0x7FFFFFFF, which is incremented to 0x80000000 and is interpreted as a negative number in a signed context.
CVE-2006-4774 1 Cisco 1 Ios 2026-04-16 N/A
The VLAN Trunking Protocol (VTP) feature in Cisco IOS 12.1(19) allows remote attackers to cause a denial of service by sending a VTP version 1 summary frame with a VTP version field value of 2.
CVE-2001-0865 1 Cisco 1 12000 Router 2026-04-16 N/A
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 does not support the "fragment" keyword in an outgoing ACL, which could allow fragmented packets in violation of the intended access.