CVE-2022-40524
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 over-read in Modem while processing SetNativeHandle RTP service.
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 buffer over-read vulnerability exists in the Modem component when processing the SetNativeHandle RTP service, leading to memory corruption. An attacker could exploit this to read sensitive memory contents or cause a denial of service by triggering the out-of-bounds memory access.
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 modem firmware in environmentInventory your hardware or system components for the presence of Qualcomm Aqt1000, Qca6390, Qca6391, Qca6420, Qca6426, Qca6430, Qca6436, or Qca6574au modem chips. Check device specifications, hardware manifests, or system information commands (such as lspci, lsusb, or manufacturer documentation) that list modem or wireless chipset identifiers.Affected if Any of these eight specific Qualcomm modem firmware products are present in the environment
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Check modem firmware versionQuery the installed modem firmware version using vendor-specific tools, diagnostic interfaces, or system logs. Common methods include AT commands on cellular modems, firmware version files in /proc or /sys, or proprietary diagnostic software provided by the device manufacturer.Affected if The firmware version cannot be determined or falls within the affected product list (all versions of the listed products)
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Confirm SetNativeHandle RTP service is enabledDetermine whether the Modem component's SetNativeHandle RTP service is active or accessible. This may require examining modem configuration files, service status logs, or network service listings that show RTP-related functionality. Consult vendor documentation for the specific service name and how to query its status.Affected if The SetNativeHandle RTP service is enabled, running, or accessible on the system
If you have any of the eight listed Qualcomm modem firmware products (Aqt1000, Qca6390, Qca6391, Qca6420, Qca6426, Qca6430, Qca6436, Qca6574au) and the SetNativeHandle RTP service is active, your environment is likely affected by this buffer over-read 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 dataApply the vendor-supplied firmware update for the Modem that addresses the buffer over-read vulnerability in SetNativeHandle RTP processing. Until the patch is available, monitor for unusual modem behavior and restrict untrusted sources from sending RTP traffic.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA6.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40524 — 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-2022-40524 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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