Security readout for executives and security teams
CVE-2019-20386 is a medium-severity memory leak in systemd before version 243. The issue is tied to logind button handling during udev trigger activity. It is not listed in CISA KEV, and the provided sources do not show active exploitation. Exposure is most likely on Linux systems or appliances shipping affected systemd builds before 243, or vendor packages without the relevant backport. The CVE affected-product metadata is incomplete, so validation should use OS and appliance vendor advisories. Treat this as a standard vulnerability-management item, not an emergency. Prioritize shared Linux servers, multi-user environments, and appliances where vendor advisories confirm exposure. Mitigation focus: Update systemd to version 243 or a vendor-fixed backported package.; Apply relevant OS vendor updates from Ubuntu, Fedora, or openSUSE where applicable.; For NetApp products, follow the NetApp advisory and product-specific remediation guidance..
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-401: Exact CWE lookup
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Open ATT&CK lookupCVE-2019-20386 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
- Medium
- CVSS
- 5.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N2.52.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.1MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/systemd/systemd/commit/b2774a3ae692113e1f47a336a6c09bac9cfb49adCVE reference · x_refsource_MISC
- https://security.netapp.com/advisory/ntap-20200210-0002/CVE reference · x_refsource_CONFIRM
- USN-4269-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- FEDORA-2020-f8e267d6d0CVE reference · vendor-advisory, x_refsource_FEDORA
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.
Missing Release of Memory after Effective Lifetime
Missing Release of Memory after Effective Lifetime represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.