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CVE Record

CVE-2018-9406: In NlpService, there is a possible way to obtain location information due to a missing permission check.

In NlpService, there is a possible way to obtain location information due to a missing permission check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-9406 is an Android issue where NlpService may expose location information because a permission check is missing. It requires local app-level access, does not require user interaction, and mainly creates confidentiality risk rather than system disruption.

Executive priority

Treat as a moderate privacy exposure. It is not remotely exploitable from the supplied evidence, but location leakage can carry regulatory and personal safety implications.

Technical view

The CVE maps to CWE-862, missing authorization. The CVSS 3.1 vector is local, low complexity, low privileges, no user interaction, unchanged scope, high confidentiality impact, and no integrity or availability impact.

Likely exposure

Exposure appears limited to Android devices or builds covered by Google's referenced Pixel security bulletin. The source bundle does not provide exact device models, build numbers, or OEM backport status.

Exploitation context

No active exploitation is cited, and the CVE is not marked KEV. The described attack requires local privileges and could allow unauthorized access to location information without additional execution privileges.

Researcher notes

The public bundle is sparse. It identifies NlpService, missing permission enforcement, Android Kernel, and the Pixel bulletin reference, but not exact patched builds or vulnerable code paths.

Mitigation direction

  • Check Google's Pixel Security Bulletin for June 1, 2018 guidance.
  • Apply applicable Android or OEM security updates for affected devices.
  • Prioritize devices that process sensitive location data.
  • Retire or isolate devices that cannot receive vendor security updates.

Validation and detection

  • Inventory Android device models, build versions, and security patch levels.
  • Compare device status against Google and OEM security bulletin coverage.
  • Confirm vulnerable builds are updated or removed from managed use.
  • Review mobile management controls for unsupported Android devices.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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 · medium confidence lookup

CWE-862: Authorization and privilege behavior lookup

Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. 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.

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cve · low confidence lookup

CVE-2018-9406 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
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:H/I:N/A:N

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N1.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2018-9406Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
GoogleAndroidAndroid Kernelunaffected
Weakness

CWE details

CWE-862

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-862 · source CWE mapping

Missing Authorization

Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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