Security readout for executives and security teams
Plain-English summary
Samsung SmartThings versions before 1.7.93 had an access-control flaw that could let a highly privileged local attacker invite others without the owner’s authorization. Business risk is unauthorized access to a SmartThings environment, with limited confidentiality, integrity, and availability impact per the CVSS data.
Executive priority
Treat as a moderate-priority mobile and connected-environment exposure. Prioritize updates where SmartThings controls sensitive homes, facilities, or shared devices, but broader emergency response is not supported by the provided evidence.
Technical view
CVE-2023-21432 is an improper access control issue in Samsung Mobile SmartThings before 1.7.93. The CVSS 3.1 vector is AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L, indicating local access and high privileges are required, with low impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to Samsung SmartThings installations older than 1.7.93. The provided CVSS vector indicates exploitation requires local access and high privileges, reducing broad remote-risk likelihood.
Exploitation context
The source bundle does not indicate active exploitation, and the CVE is not listed as CISA KEV. No public exploit status is provided in the supplied sources.
Researcher notes
The key constraint is the CVSS requirement for local access and high privileges. The vulnerability maps to CWE-285 and centers on unauthorized invitations, so validation should focus on version state and membership authorization behavior, not remote attack assumptions.
Mitigation direction
- Update SmartThings to version 1.7.93 or later where available.
- Follow Samsung Mobile’s January 2023 security guidance for affected devices.
- Restrict administrative or high-privilege access on managed mobile devices.
- Review SmartThings membership and invitation settings for unauthorized users.
Validation and detection
- Inventory SmartThings versions and identify installations older than 1.7.93.
- Confirm SmartThings owner authorization is required for new invitations.
- Review SmartThings users, members, and invitation history for unexpected entries.
- Check mobile device management records for outdated SmartThings deployments.
Public sources used
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.
CWE-285: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-21432 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
- 4.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/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:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L0.83.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/serviceWeb.smsb?year=2023&month=01CVE reference
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.