CVE-2018-13908
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 · uneditedTruncated access authentication token leads to weakened access control for stored secure application data in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in IPQ8074, MDM9150, MDM9206, MDM9607, MDM9650, MDM9655, MSM8909W, MSM8996AU, QCA8081, QCS405, QCS605, Qualcomm 215, SD 210/SD 212/SD 205, SD 410/12, SD 425, SD 427, SD 430, SD 435, SD 439 / SD 429, SD 450, SD 615/16/SD 415, SD 625, SD 632, SD 636, SD 650/52, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 8CX, SDA660, SDM439, SDM630, SDM660, Snapdragon_High_Med_2016, 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 confidenceA vulnerability in Qualcomm Snapdragon chipsets allows truncated access authentication tokens to weaken access controls for stored secure application data. The authentication token truncation reduces the effective key space, potentially allowing unauthorized access to sensitive application data stored on affected devices.
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
- 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 checksWork through these to decide whether this CVE applies to you.
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Identify the Qualcomm chipset modelCheck your device specifications, system information, or bootloader/boot messages to determine the exact Qualcomm Snapdragon chipset model (e.g., Ipq8074, Mdm9150, Mdm9206, Mdm9607, Mdm9650, Mdm9655, Msm8909w, Msm8996au)Affected if The identified chipset matches any of the following: Ipq8074, Mdm9150, Mdm9206, Mdm9607, Mdm9650, Mdm9655, Msm8909w, or Msm8996au
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Confirm the device uses one of the affected Snapdragon variantsReview the device hardware documentation, FCC filings, or teardown information to verify the specific Qualcomm chipset variant in useAffected if The device employs any of the listed affected Qualcomm chipset models
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Check firmware or baseband versionAccess the device's about page, system settings, or diagnostic interface (e.g., *#06# on mobile, or administrative console for networking gear) to retrieve the current firmware/baseband version stringAffected if The firmware version cannot be verified as patched, or the device runs the original vendor firmware with all versions of the affected chipset
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Verify secure application data access behaviorIf you develop or test applications that use Qualcomm's secure execution environment (SEE) or Trusted Execution Environment (TEE), examine whether authentication token length validation is properly enforced when accessing protected storageAffected if Authentication tokens appear truncated or the key space is reduced when accessing secure application data stored by the chipset
The device is affected if it contains any of the following Qualcomm chipsets: Ipq8074, Mdm9150, Mdm9206, Mdm9607, Mdm9650, Mdm9655, Msm8909w, or Msm8996au, and the firmware has not been updated to address the token truncation vulnerability.
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 dataThis vulnerability requires a firmware update from Qualcomm that corrects token handling. Downstream device manufacturers must integrate and distribute this patch to end users. Users should apply available security updates from their device manufacturers.
- Consultation8.0 h
- Implementation40.0 h
- Testing24.0 h
- Review / QA16.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $24,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-13908 — 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-2018-13908 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
- No spam, self-promotion, credentials, or personal data