Security readout for executives and security teams
Plain-English summary
CVE-2018-9481 is an Android Bluetooth service flaw that could expose information without user interaction or extra privileges. The provided data rates it medium severity and lists Android 8, 8.1, and 9 as affected. There is no supplied evidence of active exploitation.
Executive priority
Treat this as a moderate mobile fleet hygiene issue, not an emergency based on the provided evidence. Focus on finding legacy Android devices, confirming patch status, and retiring unsupported assets.
Technical view
The issue is an out-of-bounds read in bta_hd_set_report_act of bta_hd_act.cc, caused by integer overflow. The source maps it to CWE-125 and CWE-190. CVSS 3.1 is 6.2 with high confidentiality impact, no integrity or availability impact, and no privileges or user interaction required.
Likely exposure
Organizations may be exposed where Android 8, 8.1, or 9 devices remain in use with the vulnerable Bluetooth service. The source bundle does not identify specific device models, patch levels, or OEM distributions.
Exploitation context
The CVE description says exploitation needs no user interaction and no additional execution privileges. KEV status is false, and the provided sources do not show public active exploitation. The CVSS vector lists local attack vector, so operational range and exact preconditions need vendor confirmation.
Researcher notes
The supplied reference set is sparse and includes an Apache mailing-list URL that is not clearly tied to Android Bluetooth. Confidence is limited to the CVE record fields: affected versions, weakness classes, CVSS vector, and no KEV listing.
Mitigation direction
- Inventory Android 8, 8.1, and 9 devices in managed and unmanaged fleets.
- Check Google and device-OEM guidance for patch availability and security bulletin mapping.
- Prioritize upgrade or replacement for unsupported Android 8, 8.1, and 9 devices.
- Restrict Bluetooth use where operationally feasible until vendor patch status is confirmed.
Validation and detection
- Confirm Android version and security patch level on in-scope mobile assets.
- Review MDM inventory for Android 8, 8.1, and 9 devices.
- Map each device model to OEM security bulletin status for CVE-2018-9481.
- Check whether Bluetooth is required, enabled, or policy-controlled on exposed devices.
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-125: 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 lookupCWE-190: 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-2018-9481 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
- Medium
- CVSS
- 6.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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:N/A:N2.53.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.2MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source materials
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.