CVE-2023-33068
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 in Audio while processing IIR config data from AFE calibration block.
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 in the Audio subsystem when processing IIR (Infinite Impulse Response) filter configuration data sourced from the AFE (Analog Front End) calibration block. The vulnerability allows memory corruption due to improper handling or validation of IIR config data during audio processing.
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 Qualcomm firmware versionCheck system firmware version or modem/baseband firmware version using 'at+ver' or 'at+cgmr' for modems, or check firmware binary metadata for Fastconnect componentsAffected if Firmware version matches any of the affected products: 9206 LTE Modem, Aqt1000, Ar8035, C V2x 9150, Fastconnect 6200/6700/6800/6900
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Verify Audio subsystem is activeCheck if audio processing is enabled on the device. This may require checking system services, audio daemon status, or kernel modules related to Qualcomm audio ( often found under /d/asoc/ or /d/audio/ on Android devices)Affected if Audio subsystem is running and processing audio data
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Confirm IIR filter processing is in useInspect audio configuration for IIR filter settings. Check AFE (Analog Front End) calibration data paths and IIR config parameters, typically accessible through audio debug interfaces or configuration filesAffected if IIR filter configuration data from AFE calibration block is being processed by the audio subsystem
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Check for vulnerable code path executionMonitor or inspect memory operations during audio processing, specifically when IIR config data from AFE is loaded. Look for buffer handling in the audio driver related to IIR filter coefficientsAffected if Audio processing pipeline handles IIR config data from AFE without proper bounds checking
A system is affected if it runs any of the listed Qualcomm firmware versions with the audio subsystem enabled and IIR filter processing from AFE calibration block active.
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 validation of IIR configuration data received from the AFE calibration block before processing to prevent memory corruption. Ensure all config parameters are within expected ranges and buffers are properly sized.
- Consultation4.0 h
- Implementation8.0 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 $6,176.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-33068 — 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-2023-33068 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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- Version or environment caveats, and links to real fixes
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