CVE-2022-33260
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 due to stack based buffer overflow in core while sending command from USB of large size.
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 confidenceA stack-based buffer overflow vulnerability exists in the core component where improper bounds checking occurs when processing large USB commands. When a command of excessive size is sent via USB, the data overflows a fixed-size stack buffer, leading to memory corruption and potential arbitrary code execution.
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 firmware version on the Qualcomm chipAccess the device's system information or firmware management interface and retrieve the installed firmware version. For embedded devices, this may be available via diagnostic ports, bootloader information, or system logs.Affected if The installed firmware version matches one of the affected products: Aqt1000, Qam8295p, Qca6420, Qca6430, Qca6574au, Qca6595au, Qca6696, or Qcc5100 (all versions).
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Verify USB subsystem is enabledCheck the device configuration or system settings to determine if USB host or device functionality is active. This may be visible in the device's network configuration, hardware settings, or diagnostic interface.Affected if USB support is enabled and the device exposes USB interfaces for command processing.
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Confirm USB command processing interface is accessibleInspect whether the device accepts USB-based commands or management protocols. This could be through vendor-specific USB interfaces, diagnostic ports, or management endpoints accessible via USB connections.Affected if USB command interfaces are exposed and can accept external input without authentication or with weak validation.
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Check for evidence of abnormal USB behaviorReview system logs, USB event logs, or kernel messages for any indicators of oversized USB command handling, buffer overflow attempts, or memory corruption events related to USB operations.Affected if Logs show repeated or suspicious USB command activity, particularly with large data payloads, or any memory corruption patterns associated with USB processing.
A user is affected if the device runs any version of the listed Qualcomm firmware with USB command processing enabled and accessible, as the vulnerability requires processing of USB commands to trigger the stack buffer overflow.
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 input validation and bounds checking on all USB command handling paths to ensure data sizes are validated before copying into fixed-length stack buffers. Consider using safe string functions or adding size limits on incoming USB commands.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-33260 — 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-2022-33260 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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