Security readout for executives and security teams
Plain-English summary
This flaw is in Samsung’s mobile radio interface layer. On unpatched Samsung mobile devices, a local attacker with low privileges could trigger memory corruption and run code on the device. It is serious because successful exploitation could compromise confidentiality, integrity, and availability, but the provided sources do not show remote attack or active exploitation.
Executive priority
High priority for fleets using Samsung mobile devices for corporate access, especially BYOD or unmanaged endpoints. The issue is not described as remotely exploitable, but arbitrary code execution with high impact justifies prompt patch compliance checks and remediation tracking.
Technical view
CVE-2023-30649 is a CWE-787 heap out-of-bounds write in RILD, specifically RmtUimNeedApdu. Samsung describes affected software as prior to SMR Jul-2023 Release 1. CVSS 3.1 is 7.8 with local access, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely on Samsung mobile devices that have not received the Samsung Mobile July 2023 Security Maintenance Release 1 or later applicable firmware. The source bundle does not identify specific models, carriers, regions, or Android versions.
Exploitation context
The CVSS vector requires local access and low privileges, with no user interaction. The provided bundle marks KEV as false and contains no cited evidence of active exploitation. Treat it as a serious local privilege or code-execution risk on unmanaged or slow-to-patch devices.
Researcher notes
Evidence is limited to the CVE record and Samsung’s July 2023 bulletin reference. No exploit details, model matrix, or independent exploitation confirmation are included. Validation should focus on patch-level evidence, device applicability, and Samsung’s official advisory language.
Mitigation direction
- Apply Samsung SMR Jul-2023 Release 1 or later where available.
- Prioritize managed Samsung devices with sensitive corporate access.
- Use MDM compliance policies to block outdated patch levels.
- Check Samsung guidance for model-specific firmware availability.
- Monitor Samsung Mobile security bulletins for related updates.
Validation and detection
- Inventory Samsung mobile devices in enterprise management systems.
- Check each device Android security patch level and vendor firmware build.
- Confirm whether the device received SMR Jul-2023 Release 1 or later.
- Flag devices without available updates for risk acceptance or replacement.
- Review MDM reports for noncompliant or unmanaged Samsung devices.
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-2023-30649 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/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.