Security readout for executives and security teams
This flaw can let a remote attacker disrupt an affected ntpd service or alter system time under specific conditions. Business urgency is highest where systems depend on unauthenticated IPv4 NTP sources and expose ntpd queries. Time disruption can affect logs, scheduled jobs, authentication, and incident timelines. Exposure is most likely on servers, appliances, or distributions running vulnerable ntpd with unauthenticated IPv4 upstream time sources and reachable ntpd query behavior. The bundle does not provide a complete product inventory. Treat as high priority for externally reachable or infrastructure-critical time services. Patch during the next controlled maintenance window, sooner for exposed ntpd services supporting authentication, logging, identity, or operational scheduling. Mitigation focus: Upgrade ntp to 4.2.8p14, 4.3.100, or vendor-supported fixed packages.; Follow vendor guidance from openSUSE, Gentoo, Oracle, NetApp, or your platform vendor.; Use authenticated NTP sources where operationally supported..
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
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ATT&CK lookup starting points
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CWE-330: Exact CWE lookup
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Open ATT&CK lookupCVE-2020-13817 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
- High
- CVSS
- 7.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H2.25.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.4HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- GLSA-202007-12CVE reference · vendor-advisory, x_refsource_GENTOO
- https://www.oracle.com/security-alerts/cpujan2022.htmlCVE reference · x_refsource_MISC
- https://bugs.ntp.org/show_bug.cgi?id=3596CVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200625-0004/CVE reference · x_refsource_CONFIRM
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.
Use of Insufficiently Random Values
Use of Insufficiently Random Values represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.