‹ Back to list

CVE-2016-9310

Medium (6.5)—
Patch with priorityFIRST estimates a 11% chance of exploitation in the next 30 days. No confirmed active exploitation.
Vendor advisory· nwtime.org/ntp428p9_release
Severity6.5Medium · CVSS 3.0
Exploitation probability11 %higher than 96% of CVEs · score from Nov 8, 2026
Active exploitationNonot in the CISA catalog · checked Nov 9, 12:00 AM
Public exploitNot knownno public code found

The control mode (mode 6) functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet.

Timeline

Built from our own data: NVD, CISA KEV, FIRST EPSS, public exploits, specialised media and Orbitaley coverage.

  1. CVE record published in NVD
  2. Record last modified in NVD

Affected technologies (1)

NTP — NTP

NVD record

NVD status
Modified
Published
Jan 13, 2017
Last modified
Jun 16, 2026
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weakness (CWE)
CWE-400

References

Show 6 more referencesShow fewer

Raw JSON (NVD)

Show
{
  "id": "CVE-2016-9310",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-01-13T16:59:00.857",
  "references": [
    {
      "url": "http://nwtime.org/ntp428p9_release/",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0252.html",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/NtpBug3118",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securityfocus.com/bid/94452",
      "source": "cve@mitre.org"
    },
    {
      "url": "http://www.securitytracker.com/id/1037354",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa139",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03799en_us",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://usn.ubuntu.com/3707-2/",
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/633847",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "http://nwtime.org/ntp428p9_release/",
      "tags": [
        "Release Notes",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2017-0252.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/NtpBug3118",
      "tags": [
        "Issue Tracking",
        "Mitigation",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/94452",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1037354",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bto.bluecoat.com/security-advisory/sa139",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03799en_us",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://usn.ubuntu.com/3707-2/",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.kb.cert.org/vuls/id/633847",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The control mode (mode 6) functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to set or unset traps via a crafted control mode packet."
    },
    {
      "lang": "es",
      "value": "La funcionalidad de modo de control (mode 6) en ntpd en NTP en versiones anteriores a 4.2.8p9 permite a atacantes remotos establecer o desactivar trampas a través de un paquete de modo de control manipulado."
    }
  ],
  "lastModified": "2026-06-17T00:55:48.927",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:ntp:ntp:*:p8:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "72A23255-B135-4A4C-A2BA-A93026C0F520",
              "versionEndIncluding": "4.2.8"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}