CVE-2022-33276
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 buffer copy without checking size of input in modem while receiving WMI_REQUEST_STATS_CMDID command.
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 modem component where a WMI_REQUEST_STATS_CMDID command handler performs a buffer copy operation without validating the input size, leading to a buffer overflow and subsequent memory corruption. The flaw allows an attacker to potentially execute arbitrary code or cause denial of service by sending a specially crafted command with oversized data.
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 modem component in useExamine system documentation, hardware specifications, or boot logs to determine if the device uses any of the following modem/Firmware components: Ar8035, Ar9380, Csr8811, Ipq5010, Ipq5018, Ipq5028, Ipq6000, or Ipq6010Affected if The system uses any of the listed Qualcomm firmware components (Ar8035, Ar9380, Csr8811, Ipq5010, Ipq5018, Ipq5028, Ipq6000, Ipq6010)
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Determine the firmware versionAccess the modem or baseband processor firmware version through vendor-specific diagnostic interfaces, AT command prompts (for cellular modems), or by inspecting firmware image metadata if accessibleAffected if The firmware version matches any of the affected products listed (all versions of the listed firmware are affected)
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Verify WMI interface is enabledCheck modem configuration settings or system logs for WMI (Wireless Management Interface) service status. Look for WMI_REQUEST_STATS_CMDID or similar WMI command handler functionality in the modem firmware documentation or debug interfacesAffected if WMI command handling is enabled and accessible on the modem component
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Assess network exposure of modem interfaceReview network configuration, firewall rules, and access control lists to determine if the modem management or WMI interface is reachable from network segments. Check for exposed management ports or APIs associated with the Qualcomm modem componentAffected if The modem interface with WMI command handling is network-accessible beyond trusted boundaries
A system is affected if it contains any of the listed Qualcomm firmware components (Ar8035, Ar9380, Csr8811, Ipq5010, Ipq5018, Ipq5028, Ipq6000, Ipq6010) with WMI functionality enabled and accessible.
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 dataApply vendor-supplied firmware patches addressing the buffer overflow in the modem's WMI command handler. As an interim measure, restrict network access to the modem interface to reduce exposure to malicious command injection.
- Consultation8.0 h
- Implementation40.0 h
- Testing24.0 h
- Review / QA8.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-33276 — 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-2022-33276 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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