CVE-2024-21476
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 the channel ID passed by user is not validated and further used.
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 memory corruption vulnerability exists where a user-supplied channel ID is used without proper validation. The lack of validation allows potentially malicious or out-of-bounds channel IDs to be processed, leading to memory corruption that could be exploited for code execution or 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:3.1/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 presence of affected Qualcomm componentsInventory network devices, IoT devices, or wireless adapters in your environment and identify if any use the following chips: Qualcomm Aqt1000, Ar8035, Fastconnect 6200, Fastconnect 6800, Fastconnect 6900, Fastconnect 7800, Qca1062, or Qca1064. Consult device firmware documentation, bootloader information, or system logs to confirm the chipset model.Affected if Any of the eight listed Qualcomm firmware components are present in the environment
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Verify firmware version of Qualcomm componentUse vendor-specific tools or commands to query the firmware version of the identified Qualcomm chip. This may include commands such as 'cat /proc/version', 'iw list', 'atver', or vendor-provided diagnostic utilities depending on the device type.Affected if Firmware version can be confirmed for any of the affected components (all versions are impacted)
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Check if channel ID functionality is accessibleExamine whether the device exposes wireless channel configuration or channel selection interfaces. This may be via wireless utility tools (such as iw, wpa_supplicant, hostapd), configuration files, or management APIs that accept channel parameters.Affected if Channel ID parameters can be supplied to the wireless firmware through any interface
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Review configuration for channel validation settingsInspect configuration files or registry settings related to wireless channel operation. Look for settings that control channel ID input handling, such as channel selection modes, frequency validation parameters, or custom wireless driver settings.Affected if Channel configuration options are present and user-controllable channel IDs can be processed
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Inspect memory handling of channel operationsIf you have access to firmware debugging or memory inspection tools, monitor or review code paths where channel IDs are passed to memory operations. Check for absence of bounds checking or validation routines before memory allocation or copy functions.Affected if Channel IDs are processed without validated bounds checking before memory operations
If any of the eight affected Qualcomm firmware components (Aqt1000, Ar8035, Fastconnect 6200/6800/6900/7800, Qca1062, Qca1064) are present and channel ID input is accepted by the device, the environment is affected by this 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 dataImplement rigorous input validation and bounds checking on all channel ID parameters before they are used in memory operations. Ensure channel IDs fall within expected, safe ranges and reject any invalid or unexpected values.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-21476 — 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-2024-21476 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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