{"id":"CVE-2018-0158","title":"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthe","published":"2018-03-28T18:29:00.547Z","updated":"2026-06-16T21:29:57.937Z","severity":"high","cvssScore":8.6,"epss":0.0719,"epssPct":0.9439,"kev":true,"maturity":"weaponized","actionScore":66,"primaryVendor":"cisco","primaryProduct":"ios","cweId":"CWE-20","fixAvailable":false,"tags":["pre-auth","dos","remote","no-ui"],"epssDelta7":0,"summary":"A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak or a reload of an affected device that leads to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device to be processed. A successful exploit could cause an affected device to continuously consume memory and eventually reload, resulting in a DoS condition. Cisco Bug IDs: CSCvf22394.","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","cvssVersion":"3.1","cvssSource":"nvd-primary","cweName":"Improper Input Validation","kevAdded":"2022-03-03T00:00:00.000Z","kevDue":"2022-03-17T00:00:00.000Z","kevRansomware":"Unknown","source":"nvd","cna":"cisco","ssvc":{"exploitation":"active","automatable":"yes","impact":"partial"},"sources":{"adp":"2026-01-12T21:54:43.737Z","cna":"2026-01-12T21:54:43.737Z","epss":"2026-11-12","cna_seen":"2026-09-29T10:51:07.525Z"},"cvssCna":null,"hasPatchRef":false,"credits":[],"counts":{"exploitdb":0,"metasploit":0,"nuclei":0,"githubPoc":0},"products":[{"vendor":"cisco","product":"ios","cpe":"cpe:2.3:o:cisco:ios"},{"vendor":"cisco","product":"asr 1001-hx","cpe":"cpe:2.3:h:cisco:asr_1001-hx"},{"vendor":"cisco","product":"asr 1001-x","cpe":"cpe:2.3:h:cisco:asr_1001-x"},{"vendor":"cisco","product":"asr 1002-hx","cpe":"cpe:2.3:h:cisco:asr_1002-hx"},{"vendor":"cisco","product":"asr 1002-x","cpe":"cpe:2.3:h:cisco:asr_1002-x"},{"vendor":"cisco","product":"asr 1004","cpe":"cpe:2.3:h:cisco:asr_1004"},{"vendor":"cisco","product":"asr 1006","cpe":"cpe:2.3:h:cisco:asr_1006"},{"vendor":"cisco","product":"asr 1006-x","cpe":"cpe:2.3:h:cisco:asr_1006-x"},{"vendor":"cisco","product":"asr 1009-x","cpe":"cpe:2.3:h:cisco:asr_1009-x"},{"vendor":"cisco","product":"asr 1013","cpe":"cpe:2.3:h:cisco:asr_1013"},{"vendor":"cisco","product":"ios xe","cpe":"cpe:2.3:o:cisco:ios_xe"},{"vendor":"rockwellautomation","product":"allen-bradley stratix 5900","cpe":"cpe:2.3:h:rockwellautomation:allen-bradley_stratix_5900"}],"references":[{"url":"http://www.securityfocus.com/bid/103566","tags":"Broken Link,Third Party Advisory,VDB Entry"},{"url":"http://www.securitytracker.com/id/1040595","tags":"Broken Link,Third Party Advisory,VDB Entry"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-03","tags":"Third Party Advisory,US Government Resource,VDB Entry"},{"url":"https://ics-cert.us-cert.gov/advisories/ICSA-18-107-04","tags":"Third Party Advisory,US Government Resource,VDB Entry"},{"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike","tags":"Vendor Advisory"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0158","tags":"US Government Resource"}],"exploits":[],"analysis":null,"affectedVersions":[{"vendor":"cisco","product":"ios","version":"15.5(3)s1.1","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.10","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.11","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.12","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.2","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.4","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.5","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.7","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.8","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios","version":"15.5(3)s1.9","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.1","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.10","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.11","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.12","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.2","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.4","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.5","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.7","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.8","vsi":null,"vse":null,"vei":null,"vee":null},{"vendor":"cisco","product":"ios xe","version":"15.5(3)s1.9","vsi":null,"vse":null,"vei":null,"vee":null}],"source_attribution":"NVD (NIST), CVE Program, CISA KEV, FIRST EPSS, OSV. Aggregated by Noroxi."}