Security readout for executives and security teams
Plain-English summary
CVE-2023-30646 is a Samsung Mobile vulnerability in RILD that could let a local, low-privileged attacker execute arbitrary code. The business concern is device compromise where affected Samsung mobile devices remain below the July 2023 Samsung maintenance release.
Executive priority
Treat as a high-priority mobile fleet hygiene issue. Patch reachable managed Samsung devices promptly, especially devices used by privileged staff or handling sensitive data. Urgency is reduced if the fleet is already on post-July 2023 updates.
Technical view
The issue is a heap out-of-bounds write in BroadcastSmsConfig of RILD, tracked as CWE-787. CVSS 3.1 is 7.8 with local attack vector, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to Samsung Mobile Devices running software prior to SMR Jul-2023 Release 1. The source bundle does not provide a model-by-model affected list, carrier details, or exact Android patch-level mapping.
Exploitation context
The bundle does not cite active exploitation, and KEV is false. The CVSS vector indicates exploitation requires local access and low privileges, but no user interaction. Do not assume remote exploitation from the provided evidence.
Researcher notes
The public evidence identifies RILD BroadcastSmsConfig and arbitrary code execution, but not affected models, exploit primitives, or patch internals. Validation should focus on vendor release status and fleet patch level, not proof-of-concept testing.
Mitigation direction
- Apply Samsung SMR Jul-2023 Release 1 or later to affected devices.
- Check Samsung Mobile's July 2023 security update guidance for device-specific availability.
- Prioritize managed Samsung devices with outdated security maintenance releases.
- Retire or isolate unsupported Samsung devices that cannot receive the fix.
Validation and detection
- Inventory Samsung Mobile devices and record current security maintenance release levels.
- Confirm devices are on SMR Jul-2023 Release 1 or later.
- Check MDM compliance reports for Samsung devices below the required update level.
- Document exceptions where vendor or carrier updates are unavailable.
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-2023-30646 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
- 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.
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.