CVE-2022-26529
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 · uneditedRealtek Linux/Android Bluetooth Mesh SDK has a buffer overflow vulnerability due to insufficient validation for segmented packets’ link parameter. An unauthenticated attacker in the adjacent network can exploit this vulnerability to cause buffer overflow and disrupt 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 confidenceRealtek Linux/Android Bluetooth Mesh SDK contains a buffer overflow vulnerability stemming from insufficient validation of the link parameter in segmented packets. An unauthenticated attacker within adjacent network range can send specially crafted segmented packets with a malformed link parameter to overflow a buffer, causing service disruption.
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<= 4.17-4.17-20220127CVSS 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
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 Realtek Bluetooth Mesh SDK installationSearch for Realtek Bluetooth Mesh SDK files, libraries, or daemon processes on the system. Look for directories or packages containing 'realtek', 'bt_mesh', or 'bluetooth mesh' in their names.Affected if The Realtek Bluetooth Mesh SDK is installed on the system
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Determine installed SDK versionCheck version information of the installed Realtek Bluetooth Mesh SDK files, libraries, or associated packages. Compare against the affected version range: <= 4.17-4.17-20220127Affected if The installed version is 4.17-4.17-20220127 or earlier
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Verify Bluetooth Mesh feature is enabledInspect system configuration files or running services to determine if Bluetooth Mesh functionality is actively enabled or running. Check daemon configurations related to Bluetooth Mesh.Affected if Bluetooth Mesh feature is enabled and actively running
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Check for anomalous Bluetooth Mesh traffic or crash logsReview system logs, Bluetooth daemon logs, and application logs for error messages, crashes, or suspicious malformed packet indicators related to segmented Bluetooth Mesh communications.Affected if Logs indicate segmentation faults, buffer overflow crashes, or malformed packet errors in Bluetooth Mesh processing
A system is affected if it runs the Realtek Bluetooth Mesh SDK version 4.17-4.17-20220127 or earlier with Bluetooth Mesh functionality enabled.
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-provided patches or updates to the Realtek Bluetooth Mesh SDK that implement proper bounds checking and validation of the link parameter before processing segmented packets.
- Consultation6.0 h
- Implementation12.0 h
- Testing10.0 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 $8,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-26529 — 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-2022-26529 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
- No weaponised exploit code, or anything meant to cause harm
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