Security readout for executives and security teams
Plain-English summary
CVE-2018-11816 is a Qualcomm Snapdragon media component flaw where a local attacker could trigger a use-after-free condition in MediaServer. The available CVSS rating is high because successful exploitation could compromise confidentiality, integrity, and availability, but the source bundle does not show remote attack or active exploitation.
Executive priority
Treat this as high priority where affected Snapdragon hardware is present, especially in managed mobile or embedded environments. It is not evidence of an internet-wide emergency from the provided sources, but unpatched local code-execution paths can materially affect device trust.
Technical view
The issue is described as a heap use-after-free in video handling caused by a crafted Binder request to MediaServer. CVSS 3.1 is 7.8 with local attack vector, low complexity, low privileges required, no user interaction, and high impact across confidentiality, integrity, and availability.
Likely exposure
Exposure is most likely on devices or embedded products using the listed Qualcomm Snapdragon components, including SD660, SD670, SD820, SD821, SD835, APQ variants, and 9206 LTE Modem. The bundle does not identify specific OEM device models or fixed firmware versions.
Exploitation context
The available evidence indicates local exploitation requiring low privileges and no user interaction. CISA KEV status is false in the source bundle, and no cited source confirms active exploitation. No remote network exploitation is supported by the provided evidence.
Researcher notes
Key gaps are OEM model mapping, fixed firmware identifiers, and exploit maturity. Validation should focus on component presence and vendor bulletin coverage. Avoid assuming exploitability beyond the local Binder/MediaServer description and CVSS vector provided in the public records.
Mitigation direction
- Identify assets using the listed Qualcomm Snapdragon components.
- Apply OEM firmware updates incorporating Qualcomm's May 2018 security bulletin guidance.
- Check Qualcomm and device-vendor advisories for fixed firmware availability.
- Restrict untrusted local app installation on potentially affected devices.
- Prioritize managed mobile and embedded fleets with sensitive data access.
Validation and detection
- Inventory hardware chipsets against the affected Snapdragon list.
- Verify OEM firmware includes the Qualcomm May 2018 security bulletin fixes.
- Review MDM or asset records for unpatched affected device families.
- Confirm no unsupported devices remain in sensitive operational roles.
- Track vendor advisories for any later clarification or replacement guidance.
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-416: Exact CWE lookup
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Open ATT&CK lookupCVE-2018-11816 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
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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:L/UI:N/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.