CVE-2017-18327
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 · uneditedSecurity keys are logged when any WCDMA call is configured or reconfigured in snapdragon automobile, snapdragon mobile and snapdragon wear in versions MDM9607, MDM9635M, MDM9640, MDM9645, MDM9650, MDM9655, MSM8909W, MSM8996AU, SD 210/SD 212/SD 205, SD 425, SD 430, SD 450, SD 625, SD 650/52, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SDA660, SDX20, SXR1130.
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 confidenceThe WCDMA call configuration/reconfiguration code in the listed Snapdragon baseband processors insecurely logs security keys in plaintext. This allows any entity with log access to retrieve cryptographic keys used for authentication and encryption in WCDMA communications.
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 dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS 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
- None
- Availability
- None
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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 checksWork through these to decide whether this CVE applies to you.
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Identify baseband processor modelQuery the device or system information to determine the Snapdragon baseband processor model (e.g., check AT command responses, baseband version logs, or system diagnostics)Affected if The baseband processor is one of: Mdm9607, Mdm9635m, Mdm9640, Mdm9645, Mdm9650, Mdm9655, Msm8909w, or Msm8996au
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Confirm WCDMA capability is enabledVerify that WCDMA (3G) call functionality is active or configurable on the device - this may be observed through radio configuration settings, network registration status, or baseband logs showing WCDMA connectionsAffected if WCDMA voice or data services are enabled or used on the device
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Examine baseband logs for plaintext keysAccess and search the baseband processor logs (such as radio logs, QXDM traces, or vendor diagnostic logs) for plaintext instances of security keys, authentication tokens, or encryption material associated with WCDMA call setup or reconfiguration eventsAffected if Logs contain readable security keys, Kc keys, or authentication vectors in plaintext related to WCDMA communications
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Correlate logged keys with WCDMA eventsFilter or search logs specifically for WCDMA call configuration messages and verify if cryptographic material appears in cleartext within those entriesAffected if Security keys appear in plaintext within WCDMA-specific call configuration or reconfiguration log entries
A device is affected if it uses one of the listed Snapdragon baseband processors with WCDMA enabled and exhibits plaintext security keys in baseband or radio logs.
Generated from the published advisory. Verify against your own configuration.
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 dataApply vendor-supplied firmware/baseband updates that remove the insecure logging. Until patched, restrict access to device logs and monitor for unauthorized access.
- Consultation6.0 h
- Implementation12.0 h
- Testing16.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $11,520.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-18327 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2017-18327 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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