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EUVD-2026-84877
European Vulnerability Database identifier assigned by ENISAReserved
2026-10-02 06:21
Assigner
ENISA
Alias of
a CVE record, shown under related vulnerabilities.
This identifier carries no description, severity or references of its own:
they belong to that CVE.
{
"assigner": "ENISA",
"date_reserved": "2026-10-02T06:21:52.022998+00:00",
"id": "EUVD-2026-84877"
}
CVE-2016-4956 (GCVE-0-2016-4956)
Vulnerability from cvelistv5 – Published: 2016-07-05 01:00 – Updated: 2024-08-06 00:46
VLAI
EPSS
VEX
Summary
ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (interleaved-mode transition and time change) via a spoofed broadcast packet. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-1548.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
33 references
Date Public
2016-06-02 00:00
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"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX/"
},
{
"name": "openSUSE-SU-2016:1636",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html"
},
{
"name": "SUSE-SU-2016:1563",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html"
},
{
"name": "GLSA-201607-15",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/201607-15"
},
{
"name": "http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html",
"refsource": "MISC",
"url": "http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html"
},
{
"name": "20160603 Multiple Vulnerabilities in Network Time Protocol Daemon Affecting Cisco Products: June 2016",
"refsource": "CISCO",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd"
},
{
"name": "20170607 [security bulletin] HPESBHF03757 rev.1 - HPE Network Products including Comware 5 and Comware 7 running NTP, Remote Denial of Service (DoS)",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/540683/100/0/threaded"
},
{
"name": "SUSE-SU-2016:1568",
"refsource": "SUSE",
"url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html"
},
{
"name": "20160604 [slackware-security] ntp (SSA:2016-155-01)",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/538599/100/0/threaded"
},
{
"name": "20170607 [security bulletin] HPESBHF03757 rev.1 - HPE Network Products including Comware 5 and Comware 7 running NTP, Remote Denial of Service (DoS)",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded"
},
{
"name": "20160604 FreeBSD Security Advisory FreeBSD-SA-16:24.ntp",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/538600/100/0/threaded"
},
{
"name": "VU#321640",
"refsource": "CERT-VN",
"url": "https://www.kb.cert.org/vuls/id/321640"
},
{
"name": "20160604 [slackware-security] ntp (SSA:2016-155-01)",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded"
},
{
"name": "20160604 FreeBSD Security Advisory FreeBSD-SA-16:24.ntp",
"refsource": "BUGTRAQ",
"url": "http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded"
},
{
"name": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf",
"refsource": "CONFIRM",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
},
{
"name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11",
"refsource": "MISC",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"
}
]
}
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2016-4956",
"datePublished": "2016-07-05T01:00:00.000Z",
"dateReserved": "2016-05-23T00:00:00.000Z",
"dateUpdated": "2024-08-06T00:46:40.189Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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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.
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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.
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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.
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