Security readout for executives and security teams
Plain-English summary
CVE-2018-9341 is a critical Android media-processing flaw. A crafted media path could trigger an out-of-bounds write and potentially allow remote code execution. The bundle says user interaction is needed, but its CVSS vector says UI:N; treat that as an evidence conflict, not a confirmed no-click issue.
Executive priority
Prioritize remediation for any business-managed legacy Android devices, especially shared, kiosk, field, or high-privilege mobile use cases. The impact is severe, but current exploitation evidence is not confirmed in the supplied sources.
Technical view
The flaw is a missing bounds check in impeg2d_mc_fullx_fully in impeg2d_mc.c, classified as CWE-787. The stated impact is remote arbitrary code execution without extra privileges. Affected products listed are Android 6, 6.0.1, 7, 8, 8.1, and nyc-mr development branches.
Likely exposure
Exposure is most likely on legacy Android devices still running affected 6.x, 7.x, 8.x, or 8.1 builds without OEM security updates. Modern supported Android fleets are less likely exposed, but validation depends on device build and patch status.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. They do state potential remote code execution. Exploitation interaction requirements are unclear because the description says user interaction is needed while the CVSS vector says UI:N.
Researcher notes
Do not assume active exploitation. Note the source inconsistency between stated user interaction and CVSS UI:N. Focus validation on build provenance, OEM patch inclusion, and whether devices still process untrusted media in business workflows.
Mitigation direction
- Check Android June 2018 bulletin and OEM advisories for fixed builds.
- Update affected Android devices to vendor-supported patched firmware.
- Retire or isolate legacy devices that cannot receive security updates.
- Reduce exposure to untrusted media handling on unpatched devices.
Validation and detection
- Inventory Android versions and security patch levels across managed devices.
- Identify devices running Android 6, 6.0.1, 7, 8, or 8.1.
- Confirm OEM firmware includes the relevant Android security bulletin fix.
- Document unsupported devices and apply compensating controls or replacement plans.
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-787: 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 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-2018-9341 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/2018-06-01CVE 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.
Out-of-bounds Write
Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.