CVE-2019-19193
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 · uneditedThe Bluetooth Low Energy peripheral implementation on Texas Instruments SIMPLELINK-CC2640R2-SDK through 3.30.00.20 and BLE-STACK through 1.5.0 before Q4 2019 for CC2640R2 and CC2540/1 devices does not properly restrict the advertisement connection request packet on reception, allowing attackers in radio range to cause a denial of service (crash) via a crafted packet.
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 confidenceThe BLE peripheral in Texas Instruments CC2640R2 and CC2540/1 devices fails to properly validate incoming advertisement connection request packets, allowing proximate attackers to send specially crafted packets that crash the device.
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<= 1.5.0<= 3.30.00.20CVSS 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 the TI chip model in useInspect the device hardware labeling, PCB markings, or firmware documentation to confirm the BLE chip is either CC2640R2 or CC2540/1Affected if The device does not use one of these TI chip models, the device is not affected
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Check the TI BLE Stack versionQuery the device firmware for the BLE stack version string or examine the firmware manifest/build metadata for the ble_stack version identifierAffected if BLE Stack version is 1.5.0 or lower
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Check the CC2640R2 SDK versionQuery the device firmware for the SDK version or examine the build system for the SIMPLELINK-CC2640R2-SDK version identifierAffected if SDK version is 3.30.00.20 or lower
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Confirm BLE peripheral mode is enabledInspect the device BLE configuration to verify it operates as a peripheral (advertising mode enabled), since the vulnerability is triggered by incoming advertisement connection request packetsAffected if BLE peripheral/advertising mode is not enabled, the device is not currently vulnerable to this specific attack vector
A device is affected if it uses a TI CC2640R2 or CC2540/1 chip with BLE Stack version 1.5.0 or lower OR CC2640R2 SDK version 3.30.00.20 or lower, and has BLE peripheral advertising mode 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 dataUpdate SIMPLELINK-CC2640R2-SDK to version 3.30.00.21 or later and BLE-STACK to version 1.5.0 or later (Q4 2019 releases), then rebuild and redeploy firmware to all affected devices.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,120.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-19193 — 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-2019-19193 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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