CVE-2026-21374
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 · uneditedMemory Corruption when processing auxiliary sensor input/output control commands with insufficient buffer size validation.
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 confidenceMemory corruption vulnerability in auxiliary sensor input/output control command processing due to insufficient buffer size validation, allowing an attacker to cause memory corruption via specially crafted commands.
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:3.1/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 SoC platformCheck system information via 'cat /proc/cpuinfo' on ARM devices, or use 'lspci'/'lsusb' to enumerate hardware, or inspect device tree at /proc/device-tree/compatible. On mobile devices, check Settings > About Phone > SoC model.Affected if The displayed SoC matches any of: Sm6250, Snapdragon 460, Snapdragon 662, Snapdragon 7c, Snapdragon 7c Gen 2, Snapdragon 7c+ Gen 3, Snapdragon 8c, or sc8180xp (8c Ad).
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Locate auxiliary sensor I/O control interfaceSearch for sensor control interfaces in /dev (e.g., /dev/sensor*, /dev/aux*), /sys/class/sensor*, or check /proc/bus/input/devices for input sensor devices. Consult vendor documentation for platform-specific sensor control paths.Affected if An auxiliary sensor I/O control device node exists and is accessible (readable or writable) on the system.
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Verify command processing path is exposedCheck if user-space or kernel-space code sends commands to the auxiliary sensor I/O control interface. Review any sensor daemon logs or trace data (e.g., via 'adb shell logcat' on Android, or 'dmesg' output). Look for messages containing 'sensor', 'aux', or 'ioctl'.Affected if The system actively uses or exposes the auxiliary sensor I/O control command processing path to any actor beyond trusted firmware components.
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Confirm firmware version rangeRead firmware version from the SoC's bootloader, baseband, or sensor co-processor firmware. On Qualcomm platforms, this may appear in /sys/firmware/devicetree/base, /vendor/firmware, or via 'cat /proc/version'.Affected if The device runs any firmware version on the listed affected Qualcomm platforms, as all versions are impacted per the CVE.
A system is affected if it contains any of the listed Qualcomm Snapdragon platforms AND exposes the auxiliary sensor I/O control interface for command processing.
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 dataImplement proper bounds checking and buffer size validation before memory operations in the auxiliary sensor I/O control command handler.
- Consultation4.0 h
- Implementation12.0 h
- Testing6.0 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 $7,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-21374 — 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-2026-21374 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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