Security readout for executives and security teams
Plain-English summary
CVE-2018-9377 is a high-severity Android flaw that could let a local attacker gain elevated privileges and access user metadata without user interaction. The listed exposure is Android 6 through 8.1. The provided sources do not show active exploitation, but unsupported legacy devices should be treated as business risk.
Executive priority
Prioritize remediation for legacy Android devices with access to corporate data, especially unmanaged or unsupported endpoints. This is high severity, but the provided evidence does not support an active-exploitation claim.
Technical view
The flaw is in ActivityManagerService.java, getIntentForIntentSender, involving pending intent handling and user metadata exposure. CVSS 3.1 is 8.4 with local attack vector, low complexity, no privileges, and no user interaction. Impact is rated high across confidentiality, integrity, and availability.
Likely exposure
Exposure appears limited to Google Android versions 6, 6.0.1, 7, 7.1.1, 7.1.2, 8, and 8.1 that lack the relevant June 2018 vendor security update or OEM equivalent.
Exploitation context
Sources describe local privilege escalation with no additional execution privileges and no user interaction. The bundle marks KEV as false and provides no cited evidence of active exploitation or public weaponization.
Researcher notes
Evidence is limited to the CVE record and Google Pixel bulletin reference. Treat the root issue as pending-intent metadata exposure in ActivityManagerService. Do not infer affected versions beyond the listed Android releases.
Mitigation direction
- Apply the June 2018 Pixel security update or OEM equivalent where supported.
- Retire or isolate Android 6 through 8.1 devices that cannot receive fixes.
- Use MDM controls to restrict unsupported legacy Android devices from sensitive systems.
- Check Google and device-vendor guidance for model-specific update availability.
Validation and detection
- Inventory Android device OS versions across managed and unmanaged fleets.
- Verify each affected device has the relevant June 2018 security update or later.
- Flag Android 6 through 8.1 devices without vendor patch confirmation.
- Confirm unsupported devices are removed, isolated, or access-restricted.
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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Open ATT&CK lookupCVE-2018-9377 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/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:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.4HighVector: CVSS:3.1/AV:L/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/docs/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.
Use of Uninitialized Resource
Use of Uninitialized Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.