CVE-2015-7974

HighCVSS 7.7/10Last modified Jun 17, 2026

Description

NTP 4.x before 4.2.8p6 and 4.3.x before 4.3.90 do not verify peer associations of symmetric keys when authenticating packets, which might allow remote attackers to conduct impersonation attacks via an arbitrary trusted key, aka a "skeleton key."

Metrics

CVSS 3.1 7.7/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jan 26, 2016
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2015

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CVE-2015-7974: High severity, CVSS 7.7 | Vulnix