Security readout for executives and security teams
Plain-English summary
CVE-2018-9433 is a critical Android vulnerability involving type confusion during array concatenation handling. The source states it could allow remote code execution without added privileges, though it also says user interaction is needed. Exposure should be treated seriously for affected Android 6, 6.0.1, 7, and listed development builds.
Executive priority
Treat this as high-priority legacy Android risk. The potential impact is severe, but urgency depends on whether affected Android versions still exist in the environment and whether they are patched or unsupported.
Technical view
The issue is described in ArrayConcatVisitor in builtins-array.cc as improper input validation causing possible type confusion. The stated impact is remote code execution. The bundle maps it to CWE-116, but the provided evidence is limited and contains a user-interaction inconsistency between description and CVSS vector.
Likely exposure
Likely exposure is Android devices or builds matching the listed affected versions: 6, 6.0.1, 7, nyc-mr1-dev, and nyc-mr2-dev. The provided sources do not identify other affected products.
Exploitation context
The bundle does not cite CISA KEV listing or any public active exploitation evidence. The description says user interaction is needed, while the CVSS vector says UI:N, so validation should account for that inconsistency.
Researcher notes
Evidence is sparse beyond the CVE description and Android bulletin reference. Do not assume exploit availability. Key research tasks are confirming exact bulletin entry details, affected component context, and whether the apparent UI requirement conflict is a CVSS or description issue.
Mitigation direction
- Review the Android Security Bulletin dated 2018-07-01 for vendor remediation guidance.
- Prioritize updates or retirement for affected Android 6, 6.0.1, and 7 devices.
- Check OEM firmware status where devices do not receive Google updates directly.
- Restrict exposure of unsupported Android devices pending remediation or replacement.
Validation and detection
- Inventory Android OS versions across managed devices.
- Confirm whether affected devices have vendor security updates covering the 2018-07-01 bulletin.
- Check mobile device management records for unsupported Android 6 or 7 endpoints.
- Document any compensating controls for devices that cannot be updated.
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-116: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2018-9433 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/2018-07-01CVE 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.
Improper Encoding or Escaping of Output
Improper Encoding or Escaping of Output represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.