Vulnerability
CVE-2016-1550
MEDIUM 5.3
CVE-2016-1550 is a medium-severity vulnerability (CVSS v3.0 5.3). As of 2026-11-11, no host in our data shows software it affects on an open service.
An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key.
- Published
- 2017-01-06
- Last modified
- 2026-06-17
- CVSS score
- 5.3 CVSS v3.0
- CVSS vector (v3.0)
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Exploit likelihood (EPSS)
- 3.6% in the next 30 days (top 11% of CVEs)
Exposure in our data
0 hosts
Hosts whose banner shows an affected software version on a service open at their latest check.
Not counted: 1 459 hosts where the software version is too vague to tell (only a major release).
Counted 2026-11-11 04:20 UTC
By country
Not seen on any scanned host.
Affected software seen
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