Vulnerabilities > Cisco > IOS > Critical

DATE CVE VULNERABILITY TITLE RISK
2017-07-17 CVE-2017-6737 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco IOS
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.2 through 3.17 contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
network
low complexity
cisco CWE-119
critical
9.0
2017-07-17 CVE-2017-6738 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco IOS
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.2 through 3.17 contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
network
low complexity
cisco CWE-119
critical
9.0
2017-07-17 CVE-2017-6739 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco IOS
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.2 through 3.17 contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
network
low complexity
cisco CWE-119
critical
9.0
2017-07-17 CVE-2017-6740 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco IOS
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.2 through 3.17 contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
network
low complexity
cisco CWE-119
critical
9.0
2017-07-17 CVE-2017-6743 Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Cisco IOS XE
The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 12.0 through 12.4 and 15.0 through 15.6 and IOS XE 2.2 through 3.17 contains multiple vulnerabilities that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
network
low complexity
cisco CWE-119
critical
9.0
2017-03-17 CVE-2017-3881 Improper Input Validation vulnerability in Cisco IOS and IOS XE
A vulnerability in the Cisco Cluster Management Protocol (CMP) processing code in Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device or remotely execute code with elevated privileges.
network
low complexity
cisco CWE-20
critical
10.0
2015-09-28 CVE-2015-6280 Improper Authentication vulnerability in Cisco IOS and IOS XE
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.
network
cisco CWE-287
critical
9.3
2015-03-26 CVE-2015-0635 Improper Input Validation vulnerability in Cisco IOS and IOS XE
The Autonomic Networking Infrastructure (ANI) implementation in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.10.xS through 3.13.xS before 3.13.1S allows remote attackers to spoof Autonomic Networking Registration Authority (ANRA) responses, and consequently bypass intended device and node access restrictions or cause a denial of service (disrupted domain access), via crafted AN messages, aka Bug ID CSCup62191.
network
low complexity
cisco CWE-20
critical
9.0
2012-05-02 CVE-2011-4012 Remote Security vulnerability in IOS 12.0/15.0/15.1
Cisco IOS 12.0, 15.0, and 15.1, when a Policy Feature Card 3C (PFC3C) is used, does not create a fragment entry during processing of an ICMPv6 ACL, which has unspecified impact and remote attack vectors, aka Bug ID CSCtj90091.
network
cisco
critical
9.3
2011-10-03 CVE-2011-3271 Unspecified vulnerability in Cisco IOS 12.2/15.1
Unspecified vulnerability in the Smart Install functionality in Cisco IOS 12.2 and 15.1 allows remote attackers to execute arbitrary code or cause a denial of service (device crash) via crafted TCP packets to port 4786, aka Bug ID CSCto10165.
network
low complexity
cisco
critical
10.0