Security readout for executives and security teams
Plain-English summary
CVE-2023-30670 is a Samsung mobile vulnerability in the radio interface library. A local attacker who already has high privileges could trigger memory corruption and potentially run code. This is not a remote drive-by issue, but it matters for managed Samsung fleets because successful abuse could compromise confidentiality, integrity, and availability on affected devices.
Executive priority
Treat as a moderate mobile fleet hygiene issue. It is not evidenced as actively exploited, but affected devices may permit code execution after local high-privilege compromise. Patch supported Samsung devices and retire unsupported exceptions.
Technical view
The flaw is an out-of-bounds write, CWE-787, in BuildIpcFactoryDeviceTestEvent of libsec-ril before Samsung SMR Jul-2023 Release 1. CVSS 3.1 is 6.7 with local access, low complexity, high privileges, no user interaction, unchanged scope, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is likely limited to Samsung Mobile Devices running software before SMR Jul-2023 Release 1. The source bundle does not identify specific models, carrier builds, or Android versions, so fleet validation should rely on Samsung update status and device inventory.
Exploitation context
The provided sources do not indicate active exploitation, and the CVE is not marked KEV. Exploitation requires local access with high privileges, which reduces broad opportunistic risk but keeps concern meaningful on rooted, compromised, shared, or poorly managed devices.
Researcher notes
The public details are sparse: vulnerable function, component, weakness class, CVSS vector, and Samsung update reference are available. No proof-of-concept, exploit status, affected model matrix, or implementation-level fix details are included in the supplied evidence.
Mitigation direction
- Update affected Samsung devices to SMR Jul-2023 Release 1 or later.
- Check Samsung’s advisory for model-specific update availability.
- Prioritize corporate, privileged, or high-risk user devices first.
- Reduce exposure to untrusted apps and unmanaged local access.
- Use EMM controls to enforce supported patch levels.
Validation and detection
- Inventory Samsung mobile devices across managed environments.
- Confirm each device security update level is Jul-2023 Release 1 or later.
- Review Samsung advisory coverage for deployed device models.
- Flag devices that cannot receive the July 2023 Samsung update.
- Track exceptions with business owner and retirement plan.
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-787: 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-30670 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
- 6.7 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.7MediumVector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.