Mdm9206 FirmwareOperating system · Qualcomm

CVE-2017-18303

HIGH · 7.8 CVSS v3.0 Published 2018-10-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
While processing the sensors registry configuration file, if inputs are not validated a buffer overflow will occur in Snapdragon Automobile, Snapdragon Mobile, Snapdragon Wear in version MMDM9206, MDM9607, MDM9650, MSM8909W, MSM8996AU, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 600, SD 615/16/SD 415, SD 617, SD 625, SD 650/52, SD 800, SD 810, SD 820, SD 820A, SD 835, SDA660, SDX20.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A buffer overflow vulnerability exists in the sensors registry configuration file processing of Qualcomm Snapdragon chipsets. The vulnerability is caused by insufficient input validation when parsing the sensors registry configuration, allowing an attacker to overflow a buffer. This affects multiple Snapdragon mobile and wearable platforms.

MitigationApply firmware updates provided by the device OEM that incorporate Qualcomm's patch for this vulnerability. Until a patch is available, minimize exposure by restricting access to untrusted inputs and monitoring for anomalous sensor configuration activity.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Mdm9206 FirmwareOperating system
Affected:all versions
Mdm9607 FirmwareOperating system
Affected:all versions
Mdm9650 FirmwareOperating system
Affected:all versions
Msm8909w FirmwareOperating system
Affected:all versions
Msm8996au FirmwareOperating system
Affected:all versions
Sd 210 FirmwareOperating system
Affected:all versions
Sd 212 FirmwareOperating system
Affected:all versions
Sd 205 FirmwareOperating system
Affected:all versions

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Qualcomm chipset model
    Check the device specifications or system information to determine the exact Qualcomm Snapdragon chipset model (e.g., Mdm9206, Msm8909w, Sd 210)
    Affected if The chipset matches one of the affected models: Mdm9206, Mdm9607, Mdm9650, Msm8909w, Msm8996au, Sd 210, Sd 212, or Sd 205
  2. Confirm sensors functionality is present
    Verify the device has sensor hardware (accelerometer, gyroscope, etc.) that utilizes the sensors registry configuration system
    Affected if The device has active sensors that process registry configuration files
  3. Check if sensors configuration parsing is accessible
    Inspect whether the sensors subsystem processes configuration files from user-accessible locations or external inputs
    Affected if The sensors registry configuration can accept input from untrusted or external sources
  4. Identify the firmware version
    Query the device firmware version through system settings, boot logs, or diagnostic tools specific to the chipset
    Affected if The firmware version is any version (all versions of affected chipsets are vulnerable)

The device is affected if it uses any of the listed Qualcomm chipsets (Mdm9206, Mdm9607, Mdm9650, Msm8909w, Msm8996au, Sd 210, Sd 212, Sd 205) and processes sensors registry configuration from external or untrusted inputs.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply firmware updates provided by the device OEM that incorporate Qualcomm's patch for this vulnerability. Until a patch is available, minimize exposure by restricting access to untrusted inputs and monitoring for anomalous sensor configuration activity.

Fix this in Mdm9206 Firmware Scoped from the published advisory
  • Consultation8.0 h
  • Implementation4.0 h
  • Testing12.0 h
  • Review / QA4.0 h
28.0 hours of engineering $4,840
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-18303 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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