Security readout for executives and security teams
Plain-English summary
CVE-2023-30664 is a high-severity Samsung Mobile issue in RegisteredMSISDN. A local attacker could use improper input validation to trigger privileged activity on affected devices. Business risk is highest where Samsung Android devices are unmanaged, outdated, or used for sensitive access.
Executive priority
Treat this as a high-priority mobile patching item, especially for Samsung devices used by staff with privileged access. It is not currently evidenced as exploited in the provided sources, but the impact profile justifies rapid compliance checks.
Technical view
The CVE describes CWE-20 improper input validation in Samsung RegisteredMSISDN before SMR Jul-2023 Release 1. The CVSS 3.1 score is 8.5, with local attack vector, low complexity, no privileges, no user interaction, changed scope, high confidentiality impact, and low integrity and availability impact.
Likely exposure
Exposure is likely limited to Samsung Mobile Devices that have not received SMR Jul-2023 Release 1 or later. The bundle does not identify specific models, Android versions, or carrier firmware timelines.
Exploitation context
The source bundle does not show active exploitation, and KEV status is false. The described attacker position is local, so risk depends on physical or local app-level access to an unpatched Samsung device.
Researcher notes
The public bundle provides component, weakness class, CVSS vector, and Samsung advisory reference, but lacks exploit details, model granularity, and concrete detection indicators. Avoid assuming remote exploitability or active attacks without additional evidence.
Mitigation direction
- Apply Samsung SMR Jul-2023 Release 1 or later where available.
- Check Samsung security guidance for model-specific update availability.
- Prioritize managed devices with sensitive apps, tokens, or corporate data.
- Restrict unmanaged Samsung devices from high-trust access until patched.
- Monitor vendor advisories for any revised affected-product details.
Validation and detection
- Inventory Samsung Mobile Devices and record security patch levels.
- Confirm devices are at SMR Jul-2023 Release 1 or later.
- Check MDM compliance reports for outdated Samsung firmware.
- Review exceptions for carrier-locked or unsupported devices.
- Track remediation separately where update availability is unclear.
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-20: Exact CWE lookup
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Open ATT&CK lookupCVE-2023-30664 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
- 8.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/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:N/UI:N/S:C/C:H/I:L/A:L2.55.3Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.5HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=07CVE 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.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.