Vulnerabilities (CVE)

Filtered by vendor Cisco Subscribe
Total 6586 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-1999-1306 1 Cisco 1 Ios 2026-04-16 7.5 HIGH N/A
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.
CVE-2006-3592 1 Cisco 1 Unified Callmanager 2026-04-16 4.6 MEDIUM N/A
Unspecified vulnerability in the command line interface (CLI) in Cisco Unified CallManager (CUCM) 5.0(1) through 5.0(3a) allows local users to execute arbitrary commands with elevated privileges via unspecified vectors, involving "certain CLI commands," aka bug CSCse11005.
CVE-1999-1582 1 Cisco 1 Pix Firewall 2026-04-16 7.5 HIGH N/A
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.
CVE-2003-0851 2 Cisco, Openssl 5 Css11000 Content Services Switch, Ios, Pix Firewall and 2 more 2026-04-16 5.0 MEDIUM N/A
OpenSSL 0.9.6k allows remote attackers to cause a denial of service (crash via large recursion) via malformed ASN.1 sequences.
CVE-2006-0485 1 Cisco 1 Ios 2026-04-16 4.6 MEDIUM N/A
The TCL shell in Cisco IOS 12.2(14)S before 12.2(14)S16, 12.2(18)S before 12.2(18)S11, and certain other releases before 25 January 2006 does not perform Authentication, Authorization, and Accounting (AAA) command authorization checks, which may allow local users to execute IOS EXEC commands that were prohibited via the AAA configuration, aka Bug ID CSCeh73049.
CVE-2000-0486 1 Cisco 2 Ios, Tacacs\+ 2026-04-16 5.0 MEDIUM N/A
Buffer overflow in Cisco TACACS+ tac_plus server allows remote attackers to cause a denial of service via a malformed packet with a long length field.
CVE-2006-0340 1 Cisco 1 Ios 2026-04-16 7.1 HIGH N/A
Unspecified vulnerability in Stack Group Bidding Protocol (SGBP) support in Cisco IOS 12.0 through 12.4 running on various Cisco products, when SGBP is enabled, allows remote attackers on the local network to cause a denial of service (device hang and network traffic loss) via a crafted UDP packet to port 9900.
CVE-2004-0308 1 Cisco 1 Optical Networking Systems Software 2026-04-16 10.0 HIGH N/A
Unknown vulnerability in Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), ONS 15454 SD before 4.1(3), and Cisco ONS15600 before 1.3(0) allows a superuser whose account is locked out, disabled, or suspended to gain unauthorized access via a Telnet connection to the VxWorks shell.
CVE-2005-0943 1 Cisco 8 Vpn 3000 Concentrator Series Software, Vpn 3002 Hardware Client, Vpn 3005 Concentrator Software and 5 more 2026-04-16 5.0 MEDIUM N/A
Cisco VPN 3000 series Concentrator running firmware 4.1.7.A and earlier allows remote attackers to cause a denial of service (device reload or drop user connection) via a crafted HTTPS packet.
CVE-2006-1961 1 Cisco 5 Ciscoworks 2000 Service Management Solution, Ethernet Subscriber Solution Engine, Hosting Solution Engine and 2 more 2026-04-16 7.5 HIGH N/A
Cisco CiscoWorks Wireless LAN Solution Engine (WLSE) and WLSE Express before 2.13, Hosting Solution Engine (HSE) and User Registration Tool (URT) before 20060419, and all versions of Ethernet Subscriber Solution Engine (ESSE) and CiscoWorks2000 Service Management Solution (SMS) allow local users to gain Linux shell access via shell metacharacters in arguments to the "show" command in the application's command line interface (CLI), aka bug ID CSCsd21502 (WLSE), CSCsd22861 (URT), and CSCsd22859 (HSE). NOTE: other issues might be addressed by the Cisco advisory.
CVE-2001-0861 1 Cisco 1 12000 Router 2026-04-16 5.0 MEDIUM N/A
Cisco 12000 with IOS 12.0 and line cards based on Engine 2 and earlier allows remote attackers to cause a denial of service (CPU consumption) by flooding the router with traffic that generates a large number of ICMP Unreachable replies.
CVE-1999-0157 1 Cisco 2 Ios, Pix Firewall Software 2026-04-16 5.0 MEDIUM N/A
Cisco PIX firewall and CBAC IP fragmentation attack results in a denial of service.
CVE-2002-1099 1 Cisco 2 Vpn 3000 Concentrator Series Software, Vpn 3002 Hardware Client 2026-04-16 5.0 MEDIUM N/A
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, allows remote attackers to obtain potentially sensitive information without authentication by directly accessing certain HTML pages.
CVE-2001-1098 1 Cisco 1 Pix Firewall Manager 2026-04-16 2.1 LOW N/A
Cisco PIX firewall manager (PFM) 4.3(2)g logs the enable password in plaintext in the pfm.log file, which could allow local users to obtain the password by reading the file.
CVE-2006-3287 1 Cisco 1 Wireless Control System 2026-04-16 7.5 HIGH N/A
Cisco Wireless Control System (WCS) for Linux and Windows 4.0(1) and earlier uses a default administrator username "root" and password "public," which allows remote attackers to gain access (aka bug CSCse21391).
CVE-2001-0288 1 Cisco 1 Ios 2026-04-16 7.5 HIGH N/A
Cisco switches and routers running IOS 12.1 and earlier produce predictable TCP Initial Sequence Numbers (ISNs), which allows remote attackers to spoof or hijack TCP connections.
CVE-2005-3804 1 Cisco 1 7920 Wireless Ip Phone 2026-04-16 6.4 MEDIUM N/A
Cisco IP Phone (VoIP) 7920 1.0(8) listens to UDP port 17185 to support a VxWorks debugger, which allows remote attackers to obtain sensitive information and cause a denial of service.
CVE-1999-0063 1 Cisco 1 Ios 2026-04-16 5.0 MEDIUM N/A
Cisco IOS 12.0 and other versions can be crashed by malicious UDP packets to the syslog port.
CVE-2002-0792 1 Cisco 2 Content Services Switch 11000, Webns 2026-04-16 5.0 MEDIUM N/A
The web management interface for Cisco Content Service Switch (CSS) 11000 switches allows remote attackers to cause a denial of service (soft reset) via (1) an HTTPS POST request, or (2) malformed XML data.
CVE-2002-0853 1 Cisco 1 Vpn Client 2026-04-16 5.0 MEDIUM N/A
Cisco Virtual Private Network (VPN) Client 3.5.4 and earlier allows remote attackers to cause a denial of service (CPU consumption) via a packet with a zero-length payload.