Vulnerabilities (CVE)

Filtered by vendor Cisco Subscribe
Filtered by product Ios
Total 617 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2015-6280 1 Cisco 2 Ios, Ios Xe 2025-04-12 9.3 HIGH N/A
The SSHv2 functionality in Cisco IOS 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.6E before 3.6.3E, 3.7E before 3.7.1E, 3.10S before 3.10.6S, 3.11S before 3.11.4S, 3.12S before 3.12.3S, 3.13S before 3.13.3S, and 3.14S before 3.14.1S does not properly implement RSA authentication, which allows remote attackers to obtain login access by leveraging knowledge of a username and the associated public key, aka Bug ID CSCus73013.
CVE-2016-1349 1 Cisco 2 Ios, Ios Xe 2025-04-12 7.8 HIGH 7.5 HIGH
The Smart Install client implementation in Cisco IOS 12.2, 15.0, and 15.2 and IOS XE 3.2 through 3.7 allows remote attackers to cause a denial of service (device reload) via crafted image list parameters in a Smart Install packet, aka Bug ID CSCuv45410.
CVE-2015-0593 1 Cisco 1 Ios 2025-04-12 7.1 HIGH N/A
The Zone-Based Firewall implementation in Cisco IOS 12.4(122)T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service (device reload) via crafted network traffic, aka Bug ID CSCul65003.
CVE-2014-2146 1 Cisco 2 Ios, Ios Xe 2025-04-12 4.3 MEDIUM 6.5 MEDIUM
The Zone-Based Firewall (ZBFW) functionality in Cisco IOS, possibly 15.4 and earlier, and IOS XE, possibly 3.13 and earlier, mishandles zone checking for existing sessions, which allows remote attackers to bypass intended resource-access restrictions via spoofed traffic that matches one of these sessions, aka Bug IDs CSCun94946 and CSCun96847.
CVE-2014-2124 1 Cisco 2 Catalyst 6500, Ios 2025-04-12 7.1 HIGH N/A
Cisco IOS 15.1(2)SY3 and earlier, when used with Supervisor Engine 2T (aka Sup2T) on Catalyst 6500 devices, allows remote attackers to cause a denial of service (device crash) via crafted multicast packets, aka Bug ID CSCuf60783.
CVE-2014-3361 1 Cisco 1 Ios 2025-04-12 7.1 HIGH N/A
The ALG module in Cisco IOS 15.0 through 15.4 does not properly implement SIP over NAT, which allows remote attackers to cause a denial of service (device reload) via multipart SDP IPv4 traffic, aka Bug ID CSCun54071.
CVE-2016-1348 1 Cisco 2 Ios, Ios Xe 2025-04-12 7.8 HIGH 7.5 HIGH
Cisco IOS 15.0 through 15.5 and IOS XE 3.3 through 3.16 allow remote attackers to cause a denial of service (device reload) via a crafted DHCPv6 Relay message, aka Bug ID CSCus55821.
CVE-2015-6365 1 Cisco 1 Ios 2025-04-12 4.0 MEDIUM N/A
Cisco IOS 15.2(04)M and 15.4(03)M lets physical-interface ACLs supersede virtual PPP interface ACLs, which allows remote authenticated users to bypass intended network-traffic restrictions in opportunistic circumstances by using PPP, aka Bug ID CSCur61303.
CVE-2016-6381 1 Cisco 6 Ios, Ios Xe, Ios Xe 16.1 and 3 more 2025-04-12 7.1 HIGH 7.5 HIGH
Cisco IOS 12.4 and 15.0 through 15.6 and IOS XE 3.1 through 3.18 and 16.1 allow remote attackers to cause a denial of service (memory consumption or device reload) via fragmented IKEv1 packets, aka Bug ID CSCuy47382.
CVE-2016-6393 1 Cisco 2 Ios, Ios Xe 2025-04-12 7.1 HIGH 7.5 HIGH
The AAA service in Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.1 through 3.18 and 16.2 allows remote attackers to cause a denial of service (device reload) via a failed SSH connection attempt that is mishandled during generation of an error-log message, aka Bug ID CSCuy87667.
CVE-2015-6263 1 Cisco 1 Ios 2025-04-12 6.3 MEDIUM N/A
The RADIUS client implementation in Cisco IOS 15.4(3)M2.2, when a shared RADIUS secret is configured, allows remote RADIUS servers to cause a denial of service (device reload) via malformed answers, aka Bug ID CSCuu59324.
CVE-2015-6366 1 Cisco 1 Ios 2025-04-12 5.0 MEDIUM N/A
Cisco IOS 15.2(04)M6 and 15.4(03)S lets physical-interface ACLs supersede tunnel-interface ACLs, which allows remote attackers to bypass intended network-traffic restrictions in opportunistic circumstances by using a tunnel, aka Bug ID CSCur01042.
CVE-2014-2109 1 Cisco 1 Ios 2025-04-12 7.8 HIGH N/A
The TCP Input module in Cisco IOS 12.2 through 12.4 and 15.0 through 15.4, when NAT is used, allows remote attackers to cause a denial of service (memory consumption or device reload) via crafted TCP packets, aka Bug IDs CSCuh33843 and CSCuj41494.
CVE-2015-6294 1 Cisco 2 Ios, Ios Xe 2025-04-12 6.1 MEDIUM N/A
Cisco IOS 15.2(3)E and earlier and IOS XE 3.6(2)E and earlier allow remote attackers to cause a denial of service (functionality loss) via crafted Cisco Discovery Protocol (CDP) packets, aka Bug ID CSCuu25770.
CVE-2015-4200 1 Cisco 1 Ios 2025-04-12 7.8 HIGH N/A
Memory leak in the IPv6-to-IPv4 functionality in Cisco IOS 15.3S in the Performance Routing Engine (PRE) module on UBR devices allows remote attackers to cause a denial of service (memory consumption) by triggering an error during CPE negotiation, aka Bug ID CSCug00885.
CVE-2015-0610 1 Cisco 1 Ios 2025-04-12 4.3 MEDIUM N/A
Race condition in the object-group ACL feature in Cisco IOS 15.5(2)T and earlier allows remote attackers to bypass intended access restrictions via crafted network traffic that triggers improper handling of the timing of process switching and Cisco Express Forwarding (CEF) switching, aka Bug ID CSCun21071.
CVE-2015-6343 1 Cisco 1 Ios 2025-04-12 5.0 MEDIUM N/A
The SIP implementation in Cisco IOS 15.5(3)M on Cisco Unified Border Element (CUBE) devices allows remote attackers to cause a denial of service via crafted SIP messages, aka Bug ID CSCuv79202.
CVE-2015-0659 1 Cisco 1 Ios 2025-04-12 5.0 MEDIUM N/A
The Autonomic Networking Infrastructure (ANI) implementation in Cisco IOS allows remote attackers to trigger self-referential adjacencies via a crafted Autonomic Networking (AN) message, aka Bug ID CSCup62157.
CVE-2015-0607 1 Cisco 1 Ios 2025-04-12 4.3 MEDIUM N/A
The Authentication Proxy feature in Cisco IOS does not properly handle invalid AAA return codes from RADIUS and TACACS+ servers, which allows remote attackers to bypass authentication in opportunistic circumstances via a connection attempt that triggers an invalid code, as demonstrated by a connection attempt with a blank password, aka Bug IDs CSCuo09400 and CSCun16016.
CVE-2012-3946 1 Cisco 1 Ios 2025-04-12 5.0 MEDIUM N/A
Cisco IOS before 15.3(2)S allows remote attackers to bypass interface ACL restrictions in opportunistic circumstances by sending IPv6 packets in an unspecified scenario in which expected packet drops do not occur for "a small percentage" of the packets, aka Bug ID CSCty73682.