Security readout for executives and security teams
CVE-2019-3843 is a local systemd flaw tied to DynamicUser services. A low-privileged local attacker could leave behind a SUID/SGID binary that keeps access tied to a recycled transient UID/GID, potentially exposing data or permissions from a future service. Exposure is mainly Linux systems running affected systemd builds with services using DynamicUser. Risk is higher on shared systems, multi-user hosts, or platforms where untrusted local users can execute code. The source bundle does not prove remote exposure. Handle through normal vulnerability management, with higher urgency for shared Linux servers. This is not shown as actively exploited, but it affects privilege boundaries and should not be left unpatched on multi-user systems. Mitigation focus: Apply vendor systemd updates from the relevant Linux distribution advisory.; Check Red Hat, Fedora, Ubuntu, and vendor guidance for fixed package versions.; Reduce local shell access on systems using affected systemd builds..
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-266: Exact CWE lookup
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Open ATT&CK lookupCVE-2019-3843 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
- 4.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
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:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L13.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.5MediumVector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3843CVE reference · x_refsource_CONFIRM
- FEDORA-2019-7322053e74CVE reference · vendor-advisory, x_refsource_FEDORA
- https://security.netapp.com/advisory/ntap-20190619-0002/CVE reference · x_refsource_CONFIRM
- USN-4269-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8CVE reference · mailing-list, x_refsource_MLIST
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8CVE reference · mailing-list, x_refsource_MLIST
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.
Incorrect Privilege Assignment
Incorrect Privilege Assignment represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.