Security readout for executives and security teams
Plain-English summary
CVE-2018-9447 is an Android local denial-of-service issue in emergency callback mode handling. A missing null check could let a local attacker crash that component without user interaction, affecting availability rather than data confidentiality or integrity.
Executive priority
Treat as a routine patch-management issue unless vulnerable Android devices remain in use. Business impact is service disruption on affected devices, not disclosed data theft or privilege escalation.
Technical view
The flaw is in EmergencyCallbackModeExitDialog.java onCreate handling. The CVSS 3.1 vector is AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H, indicating local, low-complexity exploitation requiring low privileges and causing high availability impact only.
Likely exposure
Exposure is limited to Android/Pixel environments covered by the cited August 2018 Google bulletin. The bundle does not provide exact device models, build numbers, or Android release ranges.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. Exploitation is local, requires low privileges per CVSS, and does not require user interaction.
Researcher notes
Evidence is sparse. The bundle identifies a missing null check in emergency callback mode and availability-only impact. Do not infer broader Android versions, exploit availability, or non-Pixel exposure beyond vendor documentation.
Mitigation direction
- Check Google and device-vendor guidance for CVE-2018-9447 applicability.
- Apply applicable Android or Pixel security updates covering the August 2018 bulletin.
- Prioritize managed devices that allow local app installation or shared-user access.
- Track remediation through MDM patch-level reporting.
Validation and detection
- Inventory Android and Pixel devices in scope.
- Compare device security patch levels against the August 2018 bulletin guidance.
- Confirm vendor firmware still receives security updates.
- Document unsupported or unverifiable devices for risk acceptance or replacement.
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
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CWE-400: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-9447 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:N/I:N/A:H1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://source.android.com/security/bulletin/pixel/2018-08-01CVE 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.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.