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CVE-2016-4957

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this…

High7.5EPSS 44.9%
Published
Updated
Reserved
Assigned by
mitre

Description

ntpd in NTP before 4.2.8p8 allows remote attackers to cause a denial of service (daemon crash) via a crypto-NAK packet. NOTE: this vulnerability exists because of an incorrect fix for CVE-2016-1547.

Scores

CVSS scores of CVE-2016-4957, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
44.9% · top 1.2% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • n/a

    • affected n/a

References (13)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .