CVE-2016-1547

N/A
Published: January 6, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 12:42 AM UTC
2 products affected across 2 vendorsNTPNTPSec

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Severity
N/A
Exploit prediction
EPSS 5%

Description

An off-path attacker can cause a preemptible client association to be demobilized in NTP 4.2.8p4 and earlier and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92 by sending a crypto NAK packet to a victim client with a spoofed source address of an existing associated peer. This is true even if authentication is enabled.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 4.2.84.2.8p34.2.8p4p4
a5fb34b9cc89b92a8fef2f459004865c93bb7f92

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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