Security readout for executives and security teams
This flaw affects NTP message authentication. A remote attacker could send crafted NTP messages and try to recover the shared message digest key, weakening trust in time synchronization. Business impact is highest where authenticated NTP protects infrastructure timing, logging, authentication, or network equipment coordination. Likely exposure includes systems, appliances, and network devices running affected NTP or NTPSec builds, especially where authenticated NTP is reachable. The source bundle names NTP Project and NTPSec as affected, with downstream advisories from Ubuntu, Debian, Red Hat, Cisco, FreeBSD, Oracle, SUSE, Gentoo, and NetApp. Handle as a targeted infrastructure hygiene issue, not a confirmed emergency. Prioritize environments where authenticated NTP underpins security logging, identity systems, distributed databases, or network appliances. Lack of KEV listing lowers urgency, but broad vendor coverage means asset inventory and patch confirmation are warranted. Mitigation focus: Check your OS, appliance, and network vendor advisories for fixed NTP packages.; Upgrade affected NTP 4.2.8p3/4.2.8p4 and listed NTPSec builds.; Prioritize internet-facing or cross-trust-boundary NTP services first..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2016-1550 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- RHSA-2016:1141CVE reference · vendor-advisory, x_refsource_REDHAT
- VU#718152CVE reference · third-party-advisory, x_refsource_CERT-VN
- https://security.netapp.com/advisory/ntap-20171004-0002/CVE reference · x_refsource_CONFIRM
- FreeBSD-SA-16:16CVE reference · vendor-advisory, x_refsource_FREEBSD
- GLSA-201607-15CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-3629CVE reference · vendor-advisory, x_refsource_DEBIAN
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0084CVE reference · x_refsource_MISC
- https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdfCVE reference · x_refsource_CONFIRM
- https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11CVE reference · x_refsource_MISC
- https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdfCVE reference · x_refsource_CONFIRM
- https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11CVE reference · x_refsource_MISC
- https://www.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.