CVE-1999-0159 (GCVE-0-1999-0159)
Vulnerability from cvelistv5 – Published: 1999-09-29 04:00 – Updated: 2025-08-27 18:38
VLAI?
Summary
Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.
Severity ?
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-01T16:27:57.802Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 3.5,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-1999-0159",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-08-27T18:38:07.688027Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400 Uncontrolled Resource Consumption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-08-27T18:38:54.613Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2022-08-17T06:49:36.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-1999-0159",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159",
"refsource": "MISC",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-1999-0159",
"datePublished": "1999-09-29T04:00:00.000Z",
"dateReserved": "1999-06-07T00:00:00.000Z",
"dateUpdated": "2025-08-27T18:38:54.613Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:9.1:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"2E9A00D5-A594-4C64-B982-10CB4C554F51\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.0\\\\(20.3\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"86AFAF8F-B8E2-453B-895C-F94138720745\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(15\\\\)ca:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"841513AE-7521-4670-8438-AE5EB70F3A48\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"FF3E8F79-6177-453C-99B5-BC9BC7670869\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\)aa:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"4B244655-A6A5-40D0-A0D1-34C814DA9389\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\)ia:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CA064273-1A6E-4303-BAAB-F585691EF9BA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(17\\\\)cc:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"0A8158E2-0DFE-479B-B085-9775FF700C85\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.1\\\\(17\\\\)ct:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"29CA3070-B75D-4E56-A338-E10F5509394E\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.2\\\\(8\\\\)sa3:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"099CFED1-0E2F-46B2-8136-BFA146EB9A00\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.2\\\\(9\\\\)p:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"047F9781-38B8-488C-B999-A3CA6BDB639C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.2\\\\(9\\\\)xa:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"3E3586C0-64AF-4584-8F56-7E0756B4A521\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.2\\\\(10\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"9B784C9F-79EE-4D08-9D03-985EC7E378FE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.2\\\\(10\\\\)bc:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"FFBA8825-442E-4CAD-A9B2-4DD8546F35F9\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\):*:*:*:*:*:*:*\", \"matchCriteriaId\": \"2A6F8329-15C7-4FED-A61D-5AF4F3A33976\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\)ed:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"CD13732A-DAE0-4D5B-9DAC-6D2CF391220D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\)t:*:*:*:*:*:*:*\", \"matchCriteriaId\": \"A53DE80A-5865-4514-BE14-BA5992EE7BDA\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.\"}]",
"id": "CVE-1999-0159",
"lastModified": "2024-11-20T23:28:00.583",
"metrics": "{\"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "1998-08-12T04:00:00.000",
"references": "[{\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"source\": \"cve@mitre.org\"}, {\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}]",
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-Other\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-1999-0159\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"1998-08-12T04:00:00.000\",\"lastModified\":\"2025-08-27T19:15:33.120\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L\",\"baseScore\":3.5,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.1,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-Other\"}]},{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:9.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2E9A00D5-A594-4C64-B982-10CB4C554F51\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.0\\\\(20.3\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"86AFAF8F-B8E2-453B-895C-F94138720745\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(15\\\\)ca:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"841513AE-7521-4670-8438-AE5EB70F3A48\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF3E8F79-6177-453C-99B5-BC9BC7670869\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\)aa:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4B244655-A6A5-40D0-A0D1-34C814DA9389\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(16\\\\)ia:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CA064273-1A6E-4303-BAAB-F585691EF9BA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(17\\\\)cc:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0A8158E2-0DFE-479B-B085-9775FF700C85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.1\\\\(17\\\\)ct:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"29CA3070-B75D-4E56-A338-E10F5509394E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.2\\\\(8\\\\)sa3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"099CFED1-0E2F-46B2-8136-BFA146EB9A00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.2\\\\(9\\\\)p:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"047F9781-38B8-488C-B999-A3CA6BDB639C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.2\\\\(9\\\\)xa:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3E3586C0-64AF-4584-8F56-7E0756B4A521\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.2\\\\(10\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"9B784C9F-79EE-4D08-9D03-985EC7E378FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.2\\\\(10\\\\)bc:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FFBA8825-442E-4CAD-A9B2-4DD8546F35F9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\):*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2A6F8329-15C7-4FED-A61D-5AF4F3A33976\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\)ed:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CD13732A-DAE0-4D5B-9DAC-6D2CF391220D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:cisco:ios:11.3\\\\(1\\\\)t:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"A53DE80A-5865-4514-BE14-BA5992EE7BDA\"}]}]}],\"references\":[{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"tags\": [\"x_refsource_MISC\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-01T16:27:57.802Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 3.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"LOW\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-1999-0159\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-08-27T18:38:07.688027Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400 Uncontrolled Resource Consumption\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-08-27T17:45:45.182Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2022-08-17T06:49:36.000Z\"}, \"x_legacyV4Record\": {\"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"version\": {\"version_data\": [{\"version_value\": \"n/a\"}]}, \"product_name\": \"n/a\"}]}, \"vendor_name\": \"n/a\"}]}}, \"data_type\": \"CVE\", \"references\": {\"reference_data\": [{\"url\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"name\": \"https://exchange.xforce.ibmcloud.com/vulnerabilities/CVE-1999-0159\", \"refsource\": \"MISC\"}]}, \"data_format\": \"MITRE\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"Attackers can crash a Cisco IOS router or device, provided they can get to an interactive prompt (such as a login). This applies to some IOS 9.x, 10.x, and 11.x releases.\"}]}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"n/a\"}]}]}, \"data_version\": \"4.0\", \"CVE_data_meta\": {\"ID\": \"CVE-1999-0159\", \"STATE\": \"PUBLIC\", \"ASSIGNER\": \"cve@mitre.org\"}}}}",
"cveMetadata": "{\"cveId\": \"CVE-1999-0159\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-08-27T18:38:54.613Z\", \"dateReserved\": \"1999-06-07T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"1999-09-29T04:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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.
Loading…
Loading…