Ar8035 FirmwareOperating system · Qualcomm

CVE-2024-21463

CRITICAL · 9.8 CVSS v3.1 Published 2024-04-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Memory corruption while processing Codec2 during v13k decoder pitch synthesis.

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 confidence

Memory corruption vulnerability in Codec2's v13k decoder pitch synthesis allows potential remote code execution. The issue occurs during processing of Codec2 audio data, where improper handling of the pitch synthesis operation leads to memory corruption.

MitigationUpdate Codec2 library to the latest patched version or apply vendor-specific patches for products using the vulnerable v13k decoder. If no patch is available, consider disabling Codec2 audio processing or implementing input validation guards.

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 data
Ar8035 FirmwareOperating system
Affected:all versions
Fastconnect 6200 FirmwareOperating system
Affected:all versions
Fastconnect 6700 FirmwareOperating system
Affected:all versions
Fastconnect 6900 FirmwareOperating system
Affected:all versions
Fastconnect 7800 FirmwareOperating system
Affected:all versions
Qam8255p FirmwareOperating system
Affected:all versions
Qam8295p FirmwareOperating system
Affected:all versions
Qam8650p FirmwareOperating system
Affected:all versions

CVSS 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
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Qualcomm component in use
    Inventory your system's hardware and firmware to determine if it contains any Qualcomm components: Ar8035, Fastconnect 6200/6700/6900/7800, or Qam8255p/8295p/8650p. Check device documentation, hardware specs, or system information utilities that list network or wireless adapters.
    Affected if The system uses any of the listed Qualcomm firmware products.
  2. Check firmware version of Qualcomm component
    Use the vendor-provided tool or command to query the firmware version of the specific Qualcomm component identified. For Fastconnect adapters, this may be via 'lspci -v', 'iw list', or vendor-specific diagnostic tools. For Qam modules, check via the embedded system's firmware management interface.
    Affected if The firmware version is any version (all versions are affected per the advisory).
  3. Verify Codec2 audio processing is enabled
    Determine if the system or application uses Codec2 for audio encoding/decoding. Check configuration files, application settings, or running processes that utilize the Codec2 library for audio operations.
    Affected if Codec2 audio processing is enabled and the v13k decoder is in use.
  4. Confirm v13k decoder is active
    Inspect active audio pipelines or decode operations to identify if the v13k decoder is being invoked. This may require checking audio daemon logs, debug output, or monitoring active codec instances.
    Affected if The v13k decoder is actively processing Codec2 audio data.

If the system contains any of the listed Qualcomm firmware products and uses Codec2 audio processing with the v13k decoder, the environment is vulnerable to this CVE.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Update Codec2 library to the latest patched version or apply vendor-specific patches for products using the vulnerable v13k decoder. If no patch is available, consider disabling Codec2 audio processing or implementing input validation guards.

Fix this in Ar8035 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-21463 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
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  • No spam, self-promotion, credentials, or personal data