CVE-1999-0524 (GCVE-0-1999-0524)
Vulnerability from cvelistv5 – Published: 2000-02-04 05:00 – Updated: 2026-05-28 17:44
VLAI
EPSS
VEX
Summary
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-28 17:44 UTC
CWE
- n/a
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| https://kc.mcafee.com/corporate/index?page=conten… | x_refsource_CONFIRM |
| http://descriptions.securescout.com/tc/11010 | x_refsource_MISC |
| https://exchange.xforce.ibmcloud.com/vulnerabilit… | vdb-entryx_refsource_XF |
| http://descriptions.securescout.com/tc/11011 | x_refsource_MISC |
| http://www.osvdb.org/95 | vdb-entryx_refsource_OSVDB |
| http://kb.vmware.com/selfservice/microsites/searc… | x_refsource_MISC |
| http://kb.juniper.net/InfoCenter/index?page=conte… | x_refsource_CONFIRM |
| https://support.f5.com/csp/article/K15277 |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-03-17T15:03:25.141Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "icmp-timestamp(322)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"tags": [
"vdb-entry",
"x_refsource_OSVDB",
"x_transferred"
],
"url": "http://www.osvdb.org/95"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
},
{
"url": "https://support.f5.com/csp/article/K15277"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-1999-0524",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-28T17:44:13.487206Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T17:44:18.231Z",
"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": "ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2017-07-10T14:57:01.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "icmp-timestamp(322)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"tags": [
"vdb-entry",
"x_refsource_OSVDB"
],
"url": "http://www.osvdb.org/95"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-1999-0524",
"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": "ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "icmp-timestamp(322)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053",
"refsource": "CONFIRM",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"name": "http://descriptions.securescout.com/tc/11010",
"refsource": "MISC",
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"name": "http://descriptions.securescout.com/tc/11011",
"refsource": "MISC",
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"refsource": "OSVDB",
"url": "http://www.osvdb.org/95"
},
{
"name": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434",
"refsource": "MISC",
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"name": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705",
"refsource": "CONFIRM",
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-1999-0524",
"datePublished": "2000-02-04T05:00:00.000Z",
"dateReserved": "1999-06-07T00:00:00.000Z",
"dateUpdated": "2026-05-28T17:44:18.231Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-1999-0524",
"date": "2026-10-03",
"epss": "0.32154",
"percentile": "0.98273"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2025-03-17T15:03:25.141Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "icmp-timestamp(322)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"tags": [
"vdb-entry",
"x_refsource_XF",
"x_transferred"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"tags": [
"vdb-entry",
"x_refsource_OSVDB",
"x_transferred"
],
"url": "http://www.osvdb.org/95"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
},
{
"url": "https://support.f5.com/csp/article/K15277"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-1999-0524",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-28T17:44:13.487206Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "CWE-200 Exposure of Sensitive Information to an Unauthorized Actor",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-28T17:44:09.438Z",
"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": "ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "n/a",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2017-07-10T14:57:01.000Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"name": "icmp-timestamp(322)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"tags": [
"vdb-entry",
"x_refsource_XF"
],
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"tags": [
"vdb-entry",
"x_refsource_OSVDB"
],
"url": "http://www.osvdb.org/95"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"tags": [
"x_refsource_CONFIRM"
],
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
}
],
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cve@mitre.org",
"ID": "CVE-1999-0524",
"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": "ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "icmp-timestamp(322)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/322"
},
{
"name": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053",
"refsource": "CONFIRM",
"url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10053"
},
{
"name": "http://descriptions.securescout.com/tc/11010",
"refsource": "MISC",
"url": "http://descriptions.securescout.com/tc/11010"
},
{
"name": "icmp-netmask(306)",
"refsource": "XF",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/306"
},
{
"name": "http://descriptions.securescout.com/tc/11011",
"refsource": "MISC",
"url": "http://descriptions.securescout.com/tc/11011"
},
{
"name": "95",
"refsource": "OSVDB",
"url": "http://www.osvdb.org/95"
},
{
"name": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434",
"refsource": "MISC",
"url": "http://kb.vmware.com/selfservice/microsites/search.do?cmd=displayKC\u0026externalId=1434"
},
{
"name": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705",
"refsource": "CONFIRM",
"url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-1999-0524",
"datePublished": "2000-02-04T05:00:00.000Z",
"dateReserved": "1999-06-07T00:00:00.000Z",
"dateUpdated": "2026-05-28T17:44:18.231Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…