Security readout for executives and security teams
Plain-English summary
This Samsung Mobile issue is a memory corruption flaw in the RILD component. A local attacker with low privileges could potentially run arbitrary code on affected devices. The public bundle identifies the fix boundary as Samsung’s July 2023 Security Maintenance Release 1.
Executive priority
Treat this as a high-priority mobile patching issue, especially for Samsung devices with access to corporate email, identity, or sensitive apps. Urgency is driven by arbitrary-code impact, not confirmed active exploitation.
Technical view
CVE-2023-30647 is a CWE-787 heap out-of-bounds write in IpcRxUsimPhoneBookCapa of RILD before 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 likely limited to Samsung Mobile Devices running software before Samsung Mobile SMR Jul-2023 Release 1. The provided sources do not identify specific models, carrier builds, or regional firmware variants.
Exploitation context
The CVSS vector requires local access and low privileges, with no user interaction. The source bundle does not show CISA KEV listing or cited evidence of active exploitation, public exploit availability, or exploitation in the wild.
Researcher notes
Evidence is sparse beyond the CVE record and Samsung bulletin. The affected code path is named, but public details do not describe reachable inputs, affected models, crash indicators, or exploit primitives. Use patch-level validation and vendor guidance.
Mitigation direction
- Deploy Samsung Mobile SMR Jul-2023 Release 1 or later where available.
- Check Samsung’s July 2023 bulletin for device-specific update availability.
- Prioritize managed devices used for privileged business access or sensitive communications.
- Remove unsupported or unpatched devices from high-trust roles until updated.
Validation and detection
- Inventory Samsung Mobile Devices across MDM and asset records.
- Confirm each device is on SMR Jul-2023 Release 1 or later.
- Map exceptions to device model, carrier build, and update availability.
- Track remediation status for devices that cannot receive the update.
- Avoid exploit testing; validate by version and vendor bulletin evidence.
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-2023-30647 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.