GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2018-0159 (GCVE-0-2018-0159)

Vulnerability from cvelistv5 – Published: 2018-03-28 22:00 – Updated: 2026-01-12 21:55
VLAI CISA Previdian
Summary
A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-08 17:26 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
n/a Cisco IOS and IOS XE Affected: Cisco IOS and IOS XE
Date Public
2018-03-28 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ea1291df-0a08-4189-a95d-28643700d817

Vulnerability ID: CVE-2018-0159

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEV entry: Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability | Affected: Cisco / IOS Software and Cisco IOS XE Software | Description: A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition. | Required action: Apply updates per vendor instructions. | Due date: 2022-03-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://nvd.nist.gov/vuln/detail/CVE-2018-0159
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-20
Feed CISA Known Exploited Vulnerabilities Catalog
Product IOS Software and Cisco IOS XE Software
Due Date 2022-03-17
Date Added 2022-03-03
Vendorproject Cisco
Vulnerabilityname Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 12:28 UTC | Updated: 2026-02-06 07:17 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 5ab48e06-c22f-4d29-a061-4b135f58b079

Vulnerability ID: CVE-2018-0159

Status: Confirmed

Status Updated: 2022-03-03 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2022-03-03
Asserted: 2022-03-03
Scope
Notes: KEVIntel entry: A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software... | Affected: Cisco / Cisco IOS and IOS XE | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software...
Vendor Cisco
Product Cisco IOS and IOS XE
Added Date 2022-03-03T00:00:00.000Z
Cvss Score 7.5
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev False
References
Created: 2026-06-23 14:05 UTC | Updated: 2026-07-10 06:14 UTC
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:14:16.871Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "103562",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/103562"
          },
          {
            "name": "1040595",
            "tags": [
              "vdb-entry",
              "x_refsource_SECTRACK",
              "x_transferred"
            ],
            "url": "http://www.securitytracker.com/id/1040595"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2018-0159",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T17:26:39.180557Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2022-03-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-12T21:55:25.443Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS and IOS XE",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "Cisco IOS and IOS XE"
            }
          ]
        }
      ],
      "datePublic": "2018-03-28T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-04-04T09:57:01.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "103562",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103562"
        },
        {
          "name": "1040595",
          "tags": [
            "vdb-entry",
            "x_refsource_SECTRACK"
          ],
          "url": "http://www.securitytracker.com/id/1040595"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "ID": "CVE-2018-0159",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IOS and IOS XE",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "Cisco IOS and IOS XE"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "103562",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/103562"
            },
            {
              "name": "1040595",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1040595"
            },
            {
              "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos",
              "refsource": "CONFIRM",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2018-0159",
    "datePublished": "2018-03-28T22:00:00.000Z",
    "dateReserved": "2017-11-27T00:00:00.000Z",
    "dateUpdated": "2026-01-12T21:55:25.443Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "cisa_known_exploited": {
      "cveID": "CVE-2018-0159",
      "cwes": "[\"CWE-20\"]",
      "dateAdded": "2022-03-03",
      "dueDate": "2022-03-17",
      "forensicTriage": "No",
      "knownRansomwareCampaignUse": "Unknown",
      "notes": "https://nvd.nist.gov/vuln/detail/CVE-2018-0159",
      "product": "IOS Software and Cisco IOS XE Software",
      "requiredAction": "Apply updates per vendor instructions.",
      "shortDescription": "A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition.",
      "vendorProject": "Cisco",
      "vulnerabilityName": "Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability"
    },
    "epss": {
      "cve": "CVE-2018-0159",
      "date": "2026-09-15",
      "epss": "0.0687",
      "percentile": "0.93686"
    },
    "fkie_nvd": {
      "cisaActionDue": "2022-03-17",
      "cisaExploitAdd": "2022-03-03",
      "cisaRequiredAction": "Apply updates per vendor instructions.",
      "cisaVulnerabilityName": "Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability",
      "configurations": "[{\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:15.3\\\\(3\\\\)s:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"AB84CE04-F2D0-4A37-B2BA-25126D1824D8\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-12c-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D6279A69-2F9D-4CD9-9C19-62E701C3C4F9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-12c-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A46BB1E3-D813-4C19-81FA-96B8EF3E2F7B\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-4c-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"64E9CCC6-CA54-44C4-9A41-D2CA3A25BE8C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-4c-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BC4E0CC8-9C67-4EB0-97A1-BAEFC6E9708A\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-f-a:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DDB1A95C-8513-4CC7-8CDF-012B212FF02F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"AE761B1C-D749-4E1B-9A4A-7F41D1DF9C8C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-ft-a:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"6C2A515C-797D-47EE-8051-F3FBE417BCE9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E673A75F-EFF8-4591-8E0F-A21083563DBA\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24cx-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C03D362E-8431-46D9-A214-9BF421299095\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24fs-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3D49393A-23B1-4B8A-8057-BA08745C9764\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24ts-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0FD4E0EA-5F54-4916-B379-5FDA231BC6A7\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3800x-24fs-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BA69BC08-9866-4B72-8491-A8E3FFCEF541\"}]}]}, {\"operator\": \"AND\", \"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios_xe:15.3\\\\(3\\\\)s:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"ABE8D4E6-7906-4680-A1DF-71FF3D43716F\"}]}, {\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-12c-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"D6279A69-2F9D-4CD9-9C19-62E701C3C4F9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-12c-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A46BB1E3-D813-4C19-81FA-96B8EF3E2F7B\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-4c-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"64E9CCC6-CA54-44C4-9A41-D2CA3A25BE8C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-4c-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BC4E0CC8-9C67-4EB0-97A1-BAEFC6E9708A\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-f-a:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"DDB1A95C-8513-4CC7-8CDF-012B212FF02F\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-f-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"AE761B1C-D749-4E1B-9A4A-7F41D1DF9C8C\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-ft-a:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"6C2A515C-797D-47EE-8051-F3FBE417BCE9\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:asr_901-6cz-ft-d:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"E673A75F-EFF8-4591-8E0F-A21083563DBA\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24cx-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"C03D362E-8431-46D9-A214-9BF421299095\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24fs-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3D49393A-23B1-4B8A-8057-BA08745C9764\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3600x-24ts-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0FD4E0EA-5F54-4916-B379-5FDA231BC6A7\"}, {\"vulnerable\": false, \"criteria\": \"cpe:2.3:h:cisco:me_3800x-24fs-m:-:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"BA69BC08-9866-4B72-8491-A8E3FFCEF541\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.\"}, {\"lang\": \"es\", \"value\": \"Una vulnerabilidad en la implementaci\\u00f3n de la funcionalidad Internet Key Exchange Version 1 (IKEv1) de Cisco IOS Software y Cisco IOS XE Software podr\\u00eda permitir que un atacante remoto no autenticado provoque el reinicio de un dispositivo afectado, lo que da como resultado una denegaci\\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a la validaci\\u00f3n incorrecta de paquetes IKEv1 espec\\u00edficos. Un atacante podr\\u00eda explotar esta vulnerabilidad enviando paquetes IKEv1 manipulados al dispositivo afectado durante una negociaci\\u00f3n IKE. Un exploit con \\u00e9xito, podr\\u00eda permitir que el atacante consiga que el dispositivo afectado se reinicie, lo que provoca una denegaci\\u00f3n de servicio. Cisco Bug IDs: CSCuj73916.\"}]",
      "id": "CVE-2018-0159",
      "lastModified": "2024-11-21T03:37:38.063",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:C\", \"baseScore\": 7.8, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"COMPLETE\"}, \"baseSeverity\": \"HIGH\", \"exploitabilityScore\": 10.0, \"impactScore\": 6.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2018-03-28T22:29:00.593",
      "references": "[{\"url\": \"http://www.securityfocus.com/bid/103562\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1040595\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"source\": \"ykramarz@cisco.com\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"http://www.securityfocus.com/bid/103562\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"http://www.securitytracker.com/id/1040595\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Broken Link\", \"Third Party Advisory\", \"VDB Entry\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
      "sourceIdentifier": "ykramarz@cisco.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"ykramarz@cisco.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-20\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2018-0159\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2018-03-28T22:29:00.593\",\"lastModified\":\"2026-01-14T18:44:13.093\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad en la implementaci\u00f3n de la funcionalidad Internet Key Exchange Version 1 (IKEv1) de Cisco IOS Software y Cisco IOS XE Software podr\u00eda permitir que un atacante remoto no autenticado provoque el reinicio de un dispositivo afectado, lo que da como resultado una denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se debe a la validaci\u00f3n incorrecta de paquetes IKEv1 espec\u00edficos. Un atacante podr\u00eda explotar esta vulnerabilidad enviando paquetes IKEv1 manipulados al dispositivo afectado durante una negociaci\u00f3n IKE. Un exploit con \u00e9xito, podr\u00eda permitir que el atacante consiga que el dispositivo afectado se reinicie, lo que provoca una denegaci\u00f3n de servicio. Cisco Bug IDs: CSCuj73916.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:C\",\"baseScore\":7.8,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"COMPLETE\"},\"baseSeverity\":\"HIGH\",\"exploitabilityScore\":10.0,\"impactScore\":6.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"cisaExploitAdd\":\"2022-03-03\",\"cisaActionDue\":\"2022-03-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Cisco IOS and XE Software Internet Key Exchange Version 1 Denial-of-Service Vulnerability\",\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-20\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:15.3\\\\(3\\\\)s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AB84CE04-F2D0-4A37-B2BA-25126D1824D8\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-12c-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D6279A69-2F9D-4CD9-9C19-62E701C3C4F9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-12c-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A46BB1E3-D813-4C19-81FA-96B8EF3E2F7B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-4c-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"64E9CCC6-CA54-44C4-9A41-D2CA3A25BE8C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-4c-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BC4E0CC8-9C67-4EB0-97A1-BAEFC6E9708A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-f-a:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDB1A95C-8513-4CC7-8CDF-012B212FF02F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AE761B1C-D749-4E1B-9A4A-7F41D1DF9C8C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-ft-a:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6C2A515C-797D-47EE-8051-F3FBE417BCE9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E673A75F-EFF8-4591-8E0F-A21083563DBA\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24cx-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C03D362E-8431-46D9-A214-9BF421299095\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24fs-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3D49393A-23B1-4B8A-8057-BA08745C9764\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24ts-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0FD4E0EA-5F54-4916-B379-5FDA231BC6A7\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3800x-24fs-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BA69BC08-9866-4B72-8491-A8E3FFCEF541\"}]}]},{\"operator\":\"AND\",\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios_xe:15.3\\\\(3\\\\)s:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"ABE8D4E6-7906-4680-A1DF-71FF3D43716F\"}]},{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-12c-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"D6279A69-2F9D-4CD9-9C19-62E701C3C4F9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-12c-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A46BB1E3-D813-4C19-81FA-96B8EF3E2F7B\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-4c-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"64E9CCC6-CA54-44C4-9A41-D2CA3A25BE8C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-4c-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BC4E0CC8-9C67-4EB0-97A1-BAEFC6E9708A\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-f-a:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DDB1A95C-8513-4CC7-8CDF-012B212FF02F\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-f-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"AE761B1C-D749-4E1B-9A4A-7F41D1DF9C8C\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-ft-a:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6C2A515C-797D-47EE-8051-F3FBE417BCE9\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:asr_901-6cz-ft-d:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E673A75F-EFF8-4591-8E0F-A21083563DBA\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24cx-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C03D362E-8431-46D9-A214-9BF421299095\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24fs-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3D49393A-23B1-4B8A-8057-BA08745C9764\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3600x-24ts-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0FD4E0EA-5F54-4916-B379-5FDA231BC6A7\"},{\"vulnerable\":false,\"criteria\":\"cpe:2.3:h:cisco:me_3800x-24fs-m:-:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BA69BC08-9866-4B72-8491-A8E3FFCEF541\"}]}]}],\"references\":[{\"url\":\"http://www.securityfocus.com/bid/103562\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1040595\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\",\"source\":\"psirt@cisco.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"http://www.securityfocus.com/bid/103562\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"http://www.securitytracker.com/id/1040595\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Broken Link\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159\",\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"tags\":[\"US Government Resource\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"http://www.securityfocus.com/bid/103562\", \"name\": \"103562\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\", \"x_transferred\"]}, {\"url\": \"http://www.securitytracker.com/id/1040595\", \"name\": \"1040595\", \"tags\": [\"vdb-entry\", \"x_refsource_SECTRACK\", \"x_transferred\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"tags\": [\"x_refsource_CONFIRM\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-05T03:14:16.871Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2018-0159\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-08T17:26:39.180557Z\"}}}, {\"other\": {\"type\": \"kev\", \"content\": {\"dateAdded\": \"2022-03-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159\"}}}], \"references\": [{\"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-0159\", \"tags\": [\"government-resource\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-08T16:06:35.527Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"Cisco IOS and IOS XE\", \"versions\": [{\"status\": \"affected\", \"version\": \"Cisco IOS and IOS XE\"}]}], \"datePublic\": \"2018-03-28T00:00:00.000Z\", \"references\": [{\"url\": \"http://www.securityfocus.com/bid/103562\", \"name\": \"103562\", \"tags\": [\"vdb-entry\", \"x_refsource_BID\"]}, {\"url\": \"http://www.securitytracker.com/id/1040595\", \"name\": \"1040595\", \"tags\": [\"vdb-entry\", \"x_refsource_SECTRACK\"]}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"tags\": [\"x_refsource_CONFIRM\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-20\", \"description\": \"CWE-20\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2018-04-04T09:57:01.000Z\"}, \"x_legacyV4Record\": {\"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"Cisco IOS and IOS XE\"}]}, \"product_name\": \"Cisco IOS and IOS XE\"}]}, \"vendor_name\": \"n/a\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"http://www.securityfocus.com/bid/103562\", \"name\": \"103562\", \"refsource\": \"BID\"}, {\"url\": \"http://www.securitytracker.com/id/1040595\", \"name\": \"1040595\", \"refsource\": \"SECTRACK\"}, {\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"name\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-ike-dos\", \"refsource\": \"CONFIRM\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerability is due to improper validation of specific IKEv1 packets. An attacker could exploit this vulnerability by sending crafted IKEv1 packets to an affected device during an IKE negotiation. A successful exploit could allow the attacker to cause an affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCuj73916.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-20\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-2018-0159\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"psirt@cisco.com\"}}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2018-0159\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-12T21:55:25.443Z\", \"dateReserved\": \"2017-11-27T00:00:00.000Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2018-03-28T22:00:00.000Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.