Cisco iOS vulnerabilities

581 known vulnerabilities affecting cisco/ios.

Total CVEs
581
CISA KEV
36
actively exploited
Public exploits
28
Exploited in wild
36
Severity breakdown
CRITICAL32HIGH327MEDIUM211LOW11

Vulnerabilities

Page 17 of 30
CVE-2012-4620HIGHCVSS 7.8v12.2v15.0+3 more2012-09-27
CVE-2012-4620 [HIGH] CWE-399 CVE-2012-4620: Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, Cisco IOS 12.2 and 15.0 through 15.2 on Cisco 10000 series routers, when a tunnel interface exists, allows remote attackers to cause a denial of service (interface queue wedge) via tunneled (1) GRE/IP, (2) IPIP, or (3) IPv6 in IPv4 packets, aka Bug ID CSCts66808.
nvd
CVE-2012-3079HIGHCVSS 7.8v12.22012-09-16
CVE-2012-3079 [HIGH] CWE-399 CVE-2012-3079: Cisco IOS 12.2 allows remote attackers to cause a denial of service (CPU consumption) by establishin Cisco IOS 12.2 allows remote attackers to cause a denial of service (CPU consumption) by establishing many IPv6 neighbors, aka Bug ID CSCtn78957.
nvd
CVE-2012-3893MEDIUMCVSS 6.3v15.2v15.32012-09-16
CVE-2012-3893 [MEDIUM] CVE-2012-3893: The FlexVPN implementation in Cisco IOS 15.2 and 15.3 allows remote authenticated users to cause a d The FlexVPN implementation in Cisco IOS 15.2 and 15.3 allows remote authenticated users to cause a denial of service (spoke crash) via spoke-to-spoke traffic, aka Bug ID CSCtz02622.
nvd
CVE-2012-3915MEDIUMCVSS 5.0v15.22012-09-16
CVE-2012-3915 [MEDIUM] CWE-119 CVE-2012-3915: The DMVPN tunnel implementation in Cisco IOS 15.2 allows remote attackers to cause a denial of servi The DMVPN tunnel implementation in Cisco IOS 15.2 allows remote attackers to cause a denial of service (persistent IKE state) via a large volume of hub-to-spoke traffic, aka Bug ID CSCtq39602.
nvd
CVE-2012-3895MEDIUMCVSS 6.3v15.0v15.0\(1\)se+3 more2012-09-16
CVE-2012-3895 [MEDIUM] CVE-2012-3895: Cisco IOS 15.0 through 15.3 allows remote authenticated users to cause a denial of service (device c Cisco IOS 15.0 through 15.3 allows remote authenticated users to cause a denial of service (device crash) via an MVPNv6 update, aka Bug ID CSCty89224.
nvd
CVE-2012-3923LOWCVSS 3.5v12.4v15.0+2 more2012-09-16
CVE-2012-3923 [LOW] CVE-2012-3923: The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not enabled, does no The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCte41827.
nvd
CVE-2012-3924LOWCVSS 3.5v15.1v15.22012-09-16
CVE-2012-3924 [LOW] CVE-2012-3924: The SSLVPN implementation in Cisco IOS 15.1 and 15.2, when DTLS is enabled, does not properly handle The SSLVPN implementation in Cisco IOS 15.1 and 15.2, when DTLS is enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCty97961.
nvd
CVE-2012-1350HIGHCVSS 7.8v12.3v12.3\(1a\)+300 more2012-08-06
CVE-2012-1350 [HIGH] CVE-2012-1350: Cisco IOS 12.3 and 12.4 on Aironet access points allows remote attackers to cause a denial of servic Cisco IOS 12.3 and 12.4 on Aironet access points allows remote attackers to cause a denial of service (radio-interface input-queue hang) via IAPP 0x3281 packets, aka Bug ID CSCtc12426.
nvd
CVE-2012-1338MEDIUMCVSS 6.3v15.0v15.12012-08-06
CVE-2012-1338 [MEDIUM] CWE-362 CVE-2012-1338: Cisco IOS 15.0 and 15.1 on Catalyst 3560 and 3750 series switches allows remote authenticated users Cisco IOS 15.0 and 15.1 on Catalyst 3560 and 3750 series switches allows remote authenticated users to cause a denial of service (device reload) by completing local web authentication quickly, aka Bug ID CSCts88664.
nvd
CVE-2012-1361MEDIUMCVSS 4.3v15.1v15.22012-08-06
CVE-2012-1361 [MEDIUM] CWE-200 CVE-2012-1361: Cisco IOS 15.1 and 15.2, when the Multicast Music-on-Hold (MMoH) feature of Cisco Unified Communicat Cisco IOS 15.1 and 15.2, when the Multicast Music-on-Hold (MMoH) feature of Cisco Unified Communications Manager (CUCM) is enabled, allows remote attackers to obtain sensitive crosstalk information by listening during a PSTN call, aka Bug ID CSCtx77750.
nvd
CVE-2012-1367MEDIUMCVSS 5.0v12.0v12.2+3 more2012-08-06
CVE-2012-1367 [MEDIUM] CWE-20 CVE-2012-1367: The MallocLite implementation in Cisco IOS 12.0, 12.2, 15.0, 15.1, and 15.2 allows remote attackers The MallocLite implementation in Cisco IOS 12.0, 12.2, 15.0, 15.1, and 15.2 allows remote attackers to cause a denial of service (Route Processor crash) via a BGP UPDATE message with a modified local-preference (aka LOCAL_PREF) attribute length, aka Bug ID CSCtq06538.
nvd
CVE-2012-1344LOWCVSS 3.5v15.1v15.22012-08-06
CVE-2012-1344 [LOW] CWE-119 CVE-2012-1344: Cisco IOS 15.1 and 15.2, when a clientless SSL VPN is configured, allows remote authenticated users Cisco IOS 15.1 and 15.2, when a clientless SSL VPN is configured, allows remote authenticated users to cause a denial of service (device reload) by using a web browser to refresh the SSL VPN portal page, as demonstrated by the Android browser, aka Bug ID CSCtr86328.
nvd
CVE-2012-1324HIGHCVSS 7.1v15.1v15.22012-05-03
CVE-2012-1324 [HIGH] CWE-362 CVE-2012-1324: Race condition in the Zone-Based Firewall in Cisco IOS 15.1 and 15.2, when IPS policies are configur Race condition in the Zone-Based Firewall in Cisco IOS 15.1 and 15.2, when IPS policies are configured, allows remote attackers to cause a denial of service (device crash) by sending IPv6 packets, aka Bug ID CSCtk53534.
nvd
CVE-2011-4019MEDIUMCVSS 5.4v12.4v15.0+2 more2012-05-03
CVE-2011-4019 [MEDIUM] CWE-399 CVE-2011-4019: Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) Memory leak in Cisco IOS 12.4 and 15.0 through 15.2, and Cisco Unified Communications Manager (CUCM) 7.x, allows remote attackers to cause a denial of service (memory consumption) via a crafted response to a SIP SUBSCRIBE message, aka Bug IDs CSCto93837 and CSCtj61883.
nvd
CVE-2012-1327MEDIUMCVSS 6.1v12.3v12.4+2 more2012-05-03
CVE-2012-1327 [MEDIUM] CWE-284 CVE-2012-1327: dot11t/t_if_dot11_hal_ath.c in Cisco IOS 12.3, 12.4, 15.0, and 15.1 allows remote attackers to cause dot11t/t_if_dot11_hal_ath.c in Cisco IOS 12.3, 12.4, 15.0, and 15.1 allows remote attackers to cause a denial of service (assertion failure and reboot) via 802.11 wireless traffic, as demonstrated by a video call from Apple iOS 5.0 on an iPhone 4S, aka Bug ID CSCtt94391.
nvd
CVE-2011-4231MEDIUMCVSS 6.3v15.1v15.22012-05-03
CVE-2011-4231 [MEDIUM] CWE-20 CVE-2011-4231: Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in u Cisco IOS 15.1 and 15.2 and IOS XE 3.x, when configured as an IPsec hub with X.509 certificates in use, allows remote authenticated users to cause a denial of service (segmentation fault and device crash) via unspecified vectors, aka Bug ID CSCtq61128.
nvd
CVE-2011-4012CRITICALCVSS 9.3v12.0v15.0+1 more2012-05-02
CVE-2011-4012 [CRITICAL] CVE-2011-4012: Cisco IOS 12.0, 15.0, and 15.1, when a Policy Feature Card 3C (PFC3C) is used, does not create a fra 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.
nvd
CVE-2011-2578HIGHCVSS 7.8v15.1v15.22012-05-02
CVE-2011-2578 [HIGH] CWE-399 CVE-2011-2578: Memory leak in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (memory Memory leak in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (memory consumption) via malformed SIP packets on a NAT interface, aka Bug ID CSCts12366.
nvd
CVE-2012-0338MEDIUMCVSS 5.0v12.2v12.3+2 more2012-05-02
CVE-2012-0338 [MEDIUM] CWE-20 CVE-2012-0338: Cisco IOS 12.2 through 12.4 and 15.0 does not recognize the vrf-also keyword during enforcement of a Cisco IOS 12.2 through 12.4 and 15.0 does not recognize the vrf-also keyword during enforcement of access-class commands, which allows remote attackers to establish SSH connections from arbitrary source IP addresses via a standard SSH client, aka Bug ID CSCsv86113.
nvd
CVE-2011-4007MEDIUMCVSS 5.4v15.0v15.12012-05-02
CVE-2011-4007 [MEDIUM] CWE-20 CVE-2011-4007: Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the "set mpls experimental imposition" Cisco IOS 15.0 and 15.1 and IOS XE 3.x do not properly handle the "set mpls experimental imposition" command, which allows remote attackers to cause a denial of service (device crash) via network traffic that triggers (1) fragmentation or (2) reassembly, aka Bug ID CSCtr56576.
nvd