Security readout for executives and security teams
Plain-English summary
CVE-2018-9392 is a high-severity Android issue tied to MediaTek GPS HAL code. A local attacker with existing low privileges could potentially gain System-level control. It does not require user interaction, but the source bundle does not show remote exploitation or active exploitation.
Executive priority
Treat as a high-priority mobile fleet patch validation item, especially for older Android or MediaTek-based devices. Business urgency is lower than remotely exploitable vulnerabilities because local access is required and active exploitation is not evidenced.
Technical view
The flaw is an out-of-bounds write in get_binary within vendor/mediatek/proprietary/hardware/connectivity/gps/gps_hal/src/data_coder.c, caused by a missing bounds check. It maps to CWE-787 and has CVSS 3.1 score 7.8 with local attack vector, low complexity, low privileges, and high CIA impact.
Likely exposure
Exposure appears limited to Android builds or device firmware containing the referenced MediaTek proprietary GPS HAL path. The bundle lists Google Android Kernel but also marks default status unaffected, so affected device scope should be confirmed against vendor and OEM bulletins.
Exploitation context
No KEV listing is provided and the bundle contains no evidence of active exploitation. Exploitation is local, requires existing privileges, needs no user interaction, and could result in System execution privileges if successfully abused.
Researcher notes
The source evidence is sparse and does not provide a fixed commit, exploit details, or definitive affected-device matrix. Avoid broad product claims beyond Android builds containing the referenced MediaTek GPS HAL component and validate against vendor firmware provenance.
Mitigation direction
- Apply relevant Android or Pixel security updates from the June 2018 bulletin where applicable.
- Check OEM firmware guidance for devices using MediaTek GPS HAL components.
- Prioritize remediation on managed Android devices with outdated security patch levels.
- Restrict untrusted app installation while patch status is being confirmed.
Validation and detection
- Inventory Android devices and record vendor, chipset, firmware, and Android security patch level.
- Compare device patch levels against the Pixel June 2018 security bulletin and OEM advisories.
- Confirm whether device firmware includes the referenced MediaTek GPS HAL code path.
- Track remediation evidence through MDM, EDR, or mobile fleet management reporting.
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 lookupCVE-2018-9392 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/pixel/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.
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.