Cisco
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6,717 CVEs • 6,231 products
Products (6,231)
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Products (6,231)
Click to collapse
CVEs (6,717)
CVE VENDORS PRODUCTS UPDATED PUBLISHED CVSS |
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Cisco routers and switches running IOS 12.0 through 12.2.1 allows a remote attacker to cause a denial of service via a flood of UDP packets. |
HTTP server for Cisco IOS 11.3 to 12.2 allows attackers to bypass authentication and execute arbitrary commands, when local authorization is being used, by specifying a high access level in the URL. |
PPTP implementation in Cisco IOS 12.1 and 12.2 allows remote attackers to cause a denial of service (crash) via a malformed packet. |
1Cisco 1Sn 5420 Storage Router Firmware Apr 16, 2026 Jul 11, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 Cisco SN 5420 Storage Router 1.1(3) and earlier allows remote attackers to cause a denial of service (reboot) via a series of connections to TCP port 8023. |
Cisco CBOS 2.3.0.053 sends output of the "sh nat" (aka "show nat") command to the terminal of the next user who attempts to connect to the router via telnet, which could allow that user to obtain sensitive information. |
Cisco Catalyst 5000 series switches 6.1(2) and earlier will forward an 802.1x frame on a Spanning Tree Protocol (STP) blocked port, which causes a network storm and a denial of service. |
1Cisco 1Vpn 3000 Concentrator Series Software Apr 16, 2026 Jul 2, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via an IP packet with an invalid IP option. |
Cisco Aironet 340 Series wireless bridge before 8.55 does not properly disable access to the web interface, which allows remote attackers to modify its configuration. |
1Cisco 6Vpn 3000 Concentrator Vpn 3005 ConcentratorVpn 3015 Concentrator+3 moreApr 16, 2026 Jun 18, 2001 N/A· v4 N/A· v3 7.1 HIGH· v2 Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via a flood of invalid login requests to (1) the SSL service, or (2) the telnet service, which do not properly disco...Show more |
1Cisco 3Content Services Switch 11050 Content Services Switch 11150Content Services Switch 11800Apr 16, 2026 Jun 18, 2001 N/A· v4 N/A· v3 7.2 HIGH· v2 Cisco Content Services (CSS) switch products 11800 and earlier, aka Arrowpoint, allows local users to gain privileges by entering debug mode. |
1Cisco 2Pix Firewall 515 Pix Firewall 520Apr 16, 2026 Jun 18, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 Cisco PIX Firewall 515 and 520 with 5.1.4 OS running aaa authentication to a TACACS+ server allows remote attackers to cause a denial of service via a large number of authentication requests. |
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. |
Classic Cisco IOS 9.1 and later allows attackers with access to the login prompt to obtain portions of the command history of previous users, which may allow the attacker to access sensitive data. |
Cisco IOS 12.1(3) and 12.1(3)T allows remote attackers to read and modify device configuration data via the cable-docsis read-write community string used by the Data Over Cable Service Interface Specification (DOCSIS) st...Show more |
Cisco IOS 12.0(5)XU through 12.1(2) allows remote attackers to read system administration and topology information via an "snmp-server host" command, which creates a readable "community" community string if one has not b...Show more |
1Cisco 2Broadband Operating System Cisco 6xx RoutersApr 16, 2026 Feb 16, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 The Web interface to Cisco 600 routers running CBOS 2.4.1 and earlier allow remote attackers to cause a denial of service via a URL that does not end in a space character. |
1Cisco 2Broadband Operating System Cisco 6xx RoutersApr 16, 2026 Feb 16, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 Cisco 600 routers running CBOS 2.4.1 and earlier allow remote attackers to cause a denial of service via a large ICMP echo (ping) packet. |
The Cisco Web Management interface in routers running CBOS 2.4.1 and earlier does not log invalid logins, which allows remote attackers to guess passwords without detection. |
1Cisco 2Broadband Operating System Cisco 6xx RoutersApr 16, 2026 Feb 16, 2001 N/A· v4 N/A· v3 5.0 MEDIUM· v2 CBOS 2.4.1 and earlier in Cisco 600 routers allows remote attackers to cause a denial of service via a slow stream of TCP SYN packets. |
Memory leak in Cisco Catalyst 4000, 5000, and 6000 series switches allows remote attackers to cause a denial of service via a series of failed telnet authentication attempts. |