Security readout for executives and security teams
Plain-English summary
CVE-2018-9371 is a high-severity Android/MediaTek preloader flaw that can let someone with local or physical device access gain higher privileges. The provided sources do not identify remote attack paths, affected device models, or active exploitation.
Executive priority
Prioritize confirmation for managed Android fleets with MediaTek-based devices, especially shared, field, or physically accessible assets. Business urgency is lower than a remote exploit, but compromised local privilege boundaries can affect device trust and data protection.
Technical view
The issue involves out-of-bounds reads and writes in the MediaTek Preloader, tied to an exposed interface allowing arbitrary peripheral memory mapping with insufficient allowlisting or blocklisting. Reported impact is local elevation of privilege with confidentiality, integrity, and availability impact.
Likely exposure
Potential exposure is limited to Android devices using the affected MediaTek preloader/SoC implementation. The source bundle names Android and SoCVersion but does not enumerate specific OEM models, firmware builds, or deployment prevalence.
Exploitation context
The CVE is not listed as KEV in the provided bundle. The description requires physical access and says user interaction is needed, while the CVSS vector says local access, low privileges, and no user interaction; treat prerequisites as partially inconsistent.
Researcher notes
Evidence is limited to the CVE description, CVSS metadata, CWE mapping, and Android bulletin reference. No exploit details, affected model list, or specific remediation version is provided in the bundle. Note the prerequisite inconsistency between narrative and CVSS fields.
Mitigation direction
- Review Android June 2018 bulletin and OEM guidance for affected MediaTek devices.
- Prioritize firmware or security patch deployment for confirmed in-scope devices.
- Restrict physical access to managed Android devices pending confirmation.
- Retire or isolate devices that cannot receive vendor-supported firmware updates.
Validation and detection
- Inventory Android devices by OEM, model, SoC, and firmware patch level.
- Confirm whether deployed devices use MediaTek preloader components in scope.
- Compare device firmware status against Android and OEM security guidance.
- Monitor CVE, Android bulletin, and KEV sources for exploitation updates.
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-125: 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 lookupCWE-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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-9371 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://source.android.com/security/bulletin/2018-06-01CVE 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.