Security readout for executives and security teams
Plain-English summary
This is a critical Qualcomm Snapdragon authentication flaw tied to missing debug-policy checks in an initial xbl_sec revision. If a device uses one of the listed affected platforms, compromise impact is potentially severe for confidentiality, integrity, and availability. The bundle does not provide exploit details or a confirmed patch name.
Executive priority
Prioritize identification and vendor patch verification for affected Snapdragon-based devices, especially managed mobile, embedded, or cellular devices. The severity is critical, but active exploitation is not evidenced in the bundle.
Technical view
CVE-2016-10394 is CWE-287 improper authentication in Qualcomm Snapdragon Core. The issue states that initial xbl_sec did not include all debug policy features and critical checks. CVSS 3.1 is 9.8, with local attack vector, no privileges, no user interaction, and high CIA impact.
Likely exposure
Likely exposure is limited to devices or products using Qualcomm MDM9206, MDM9607, SD 835, SD 845, or SD 850. Other Snapdragon versions are not identified as affected in the supplied bundle.
Exploitation context
CISA KEV is false, and the supplied sources do not show active exploitation. The CVSS vector is local, so exposure depends on device access or local execution context, but the impact rating is severe.
Researcher notes
Evidence is sparse. The description identifies missing debug-policy features and critical checks in initial xbl_sec, but does not provide affected firmware ranges, patch identifiers, or exploitation observations. Avoid assuming broader Snapdragon exposure beyond the listed platforms.
Mitigation direction
- Check Qualcomm May 2018 bulletin and OEM advisories for fixed firmware guidance.
- Inventory devices using the listed Qualcomm Snapdragon platforms.
- Prioritize firmware or boot component updates from the device manufacturer.
- Treat unsupported affected devices as high-risk until vendor guidance is confirmed.
- Document any exception where OEM update availability cannot be verified.
Validation and detection
- Map device models to Qualcomm chipsets in asset inventory.
- Confirm whether each device uses MDM9206, MDM9607, SD 835, SD 845, or SD 850.
- Check current firmware against OEM and Qualcomm advisory information.
- Review vendor security bulletins for CVE-2016-10394 references.
- Record unsupported or unverified devices for risk acceptance review.
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-287: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. 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-2016-10394 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: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
9.8CriticalVector: CVSS:3.1/AV:L/AC:L/PR:N/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.
Improper Authentication
Improper Authentication represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.