CVE-2019-2346
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 · uneditedFirmware is getting into loop of overwriting memory when scan command is given from host because of improper validation. in Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in IPQ8074, QCA8081, QCS404, QCS405, QCS605, SD 425, SD 427, SD 430, SD 435, SD 450, SD 625, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660
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 · moderate confidenceFirmware vulnerability in multiple Snapdragon chipsets where improper validation of scan commands from the host causes an infinite loop that continuously overwrites memory, leading to memory corruption and potential denial of service.
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 chipset modelCheck the device specifications, system information, or boot logs for the Qualcomm chipset identifier (e.g., Ipq8074, Qca8081, Qcs404, Qcs405, Qcs605, Sd 425, Sd 427, or Sd 430)Affected if The chipset matches any of the affected models: Ipq8074, Qca8081, Qcs404, Qcs405, Qcs605, Sd 425, Sd 427, or Sd 430
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Check firmware versionRetrieve the firmware version from the device (via dmesg, /proc/version, or vendor-specific CLI such as 'show version' or 'cat /etc/version')Affected if Any firmware version is present on an affected chipset, since all versions are vulnerable
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Verify scan command interface is exposedCheck if the host system has the ability to send scan commands to the chipset firmware (this may be via WiFi driver ioctls, debug interfaces, or vendor-specific APIs; inspect network driver configuration and any exposed debug or management interfaces)Affected if The host can issue scan commands to the chipset firmware
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Look for memory corruption indicatorsMonitor system logs (dmesg, kernel logs) and memory dumps for signs of memory corruption, unexpected reboots, or infinite loop behavior that could indicate the vulnerability has been triggeredAffected if Memory corruption or denial of service symptoms are observed on a device with an affected chipset
A device is affected if it uses any of the listed Qualcomm chipsets (Ipq8074, Qca8081, Qcs404, Qcs405, Qcs605, Sd 425, Sd 427, or Sd 430) and the host has the ability to send scan commands to the firmware, as all firmware versions of these chipsets are vulnerable.
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-provided firmware updates/patches from Qualcomm or device manufacturers for affected chipsets to address the improper input validation vulnerability.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-2346 — 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-2019-2346 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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