Vulnerabilities (CVE)

Filtered by vendor Cisco Subscribe
Filtered by product Ios
Total 608 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2009-0631 1 Cisco 1 Ios 2025-04-09 7.8 HIGH N/A
Unspecified vulnerability in Cisco IOS 12.0 through 12.4, when configured with (1) IP Service Level Agreements (SLAs) Responder, (2) Session Initiation Protocol (SIP), (3) H.323 Annex E Call Signaling Transport, or (4) Media Gateway Control Protocol (MGCP) allows remote attackers to cause a denial of service (blocked input queue on the inbound interface) via a crafted UDP packet.
CVE-2008-3809 1 Cisco 1 Ios 2025-04-09 7.1 HIGH N/A
Cisco IOS 12.0 through 12.4 on Gigabit Switch Router (GSR) devices (aka 12000 Series routers) allows remote attackers to cause a denial of service (device crash) via a malformed Protocol Independent Multicast (PIM) packet.
CVE-2007-5651 1 Cisco 2 Catos, Ios 2025-04-09 7.1 HIGH N/A
Unspecified vulnerability in the Extensible Authentication Protocol (EAP) implementation in Cisco IOS 12.3 and 12.4 on Cisco Access Points and 1310 Wireless Bridges (Wireless EAP devices), IOS 12.1 and 12.2 on Cisco switches (Wired EAP devices), and CatOS 6.x through 8.x on Cisco switches allows remote attackers to cause a denial of service (device reload) via a crafted EAP Response Identity packet.
CVE-2007-2586 1 Cisco 1 Ios 2025-04-09 9.3 HIGH N/A
The FTP Server in Cisco IOS 11.3 through 12.4 does not properly check user authorization, which allows remote attackers to execute arbitrary code, and have other impact including reading startup-config, as demonstrated by a crafted MKD command that involves access to a VTY device and overflows a buffer, aka bug ID CSCek55259.
CVE-2007-4430 1 Cisco 5 Cbos, Cli, Ids and 2 more 2025-04-09 5.0 MEDIUM N/A
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows context-dependent attackers to cause a denial of service (device restart and BGP routing table rebuild) via certain regular expressions in a "show ip bgp regexp" command. NOTE: unauthenticated remote attacks are possible in environments with anonymous telnet and Looking Glass access.
CVE-2009-2872 1 Cisco 1 Ios 2025-04-09 6.8 MEDIUM N/A
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.
CVE-2009-0630 1 Cisco 1 Ios 2025-04-09 7.1 HIGH N/A
The (1) Cisco Unified Communications Manager Express; (2) SIP Gateway Signaling Support Over Transport Layer Security (TLS) Transport; (3) Secure Signaling and Media Encryption; (4) Blocks Extensible Exchange Protocol (BEEP); (5) Network Admission Control HTTP Authentication Proxy; (6) Per-user URL Redirect for EAPoUDP, Dot1x, and MAC Authentication Bypass; (7) Distributed Director with HTTP Redirects; and (8) TCP DNS features in Cisco IOS 12.0 through 12.4 do not properly handle IP sockets, which allows remote attackers to cause a denial of service (outage or resource consumption) via a series of crafted TCP packets.
CVE-2008-1156 1 Cisco 2 Cisco Ios, Ios 2025-04-09 5.1 MEDIUM N/A
Unspecified vulnerability in the Multicast Virtual Private Network (MVPN) implementation in Cisco IOS 12.0, 12.2, 12.3, and 12.4 allows remote attackers to create "extra multicast states on the core routers" via a crafted Multicast Distribution Tree (MDT) Data Join message.
CVE-2008-1153 1 Cisco 2 Cisco Ios, Ios 2025-04-09 7.1 HIGH N/A
Cisco IOS 12.1, 12.2, 12.3, and 12.4, with IPv4 UDP services and the IPv6 protocol enabled, allows remote attackers to cause a denial of service (device crash and possible blocked interface) via a crafted IPv6 packet to the device.
CVE-2009-2866 1 Cisco 1 Ios 2025-04-09 7.8 HIGH N/A
Unspecified vulnerability in Cisco IOS 12.2 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted H.323 packet, aka Bug ID CSCsz38104.
CVE-2009-0471 1 Cisco 1 Ios 2025-04-09 6.8 MEDIUM N/A
Cross-site request forgery (CSRF) vulnerability in the HTTP server in Cisco IOS 12.4(23) allows remote attackers to execute arbitrary commands, as demonstrated by executing the hostname command with a level/15/configure/-/hostname request.
CVE-2007-0917 1 Cisco 1 Ios 2025-04-09 6.4 MEDIUM N/A
The Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XE to 12.3T allows remote attackers to bypass IPS signatures that use regular expressions via fragmented packets.
CVE-2007-5552 1 Cisco 1 Ios 2025-04-09 9.3 HIGH N/A
Integer overflow in Cisco IOS allows remote attackers to execute arbitrary code via unspecified vectors. NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.
CVE-2008-3810 1 Cisco 1 Ios 2025-04-09 7.8 HIGH N/A
Cisco IOS 12.2 and 12.4, when NAT Skinny Call Control Protocol (SCCP) Fragmentation Support is enabled, allows remote attackers to cause a denial of service (device reload) via segmented SCCP messages, aka CSCsg22426, a different vulnerability than CVE-2008-3811.
CVE-2007-0918 1 Cisco 1 Ios 2025-04-09 7.1 HIGH N/A
The ATOMIC.TCP signature engine in the Intrusion Prevention System (IPS) feature for Cisco IOS 12.4XA, 12.3YA, 12.3T, and other trains allows remote attackers to cause a denial of service (IPS crash and traffic loss) via unspecified manipulations that are not properly handled by the regular expression feature, as demonstrated using the 3123.0 (Netbus Pro Traffic) signature.
CVE-2008-3808 1 Cisco 1 Ios 2025-04-09 7.8 HIGH N/A
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to cause a denial of service (device reload) via a crafted Protocol Independent Multicast (PIM) packet.
CVE-2009-2869 1 Cisco 1 Ios 2025-04-09 7.8 HIGH N/A
Unspecified vulnerability in Cisco IOS 12.2XNA, 12.2XNB, 12.2XNC, 12.2XND, 12.4MD, 12.4T, 12.4XZ, and 12.4YA allows remote attackers to cause a denial of service (device reload) via a crafted NTPv4 packet, aka Bug IDs CSCsu24505 and CSCsv75948.
CVE-2008-3803 1 Cisco 1 Ios 2025-04-09 5.1 MEDIUM N/A
A "logic error" in Cisco IOS 12.0 through 12.4, when a Multiprotocol Label Switching (MPLS) VPN with extended communities is configured, sometimes causes a corrupted route target (RT) to be used, which allows remote attackers to read traffic from other VPNs in opportunistic circumstances.
CVE-2005-2105 1 Cisco 1 Ios 2025-04-03 7.5 HIGH N/A
Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.
CVE-1999-1306 1 Cisco 1 Ios 2025-04-03 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.