Medium severity6.5NVD Advisory· Published Sep 7, 2021· Updated Jun 17, 2026
CVE-2021-31609
CVE-2021-31609
Description
The Bluetooth Classic implementation in Silicon Labs iWRAP 6.3.0 and earlier does not properly handle the reception of an oversized LMP packet greater than 17 bytes, allowing attackers in radio range to trigger a crash in WT32i via a crafted LMP packet.
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Affected products
4- Range: <=6.3.0
- Range: <=6.3.0
- Silicon Labs/iWRAPdescription
Patches
Vulnerability mechanics
References
2- dl.packetstormsecurity.net/papers/general/braktooth.pdfnvdTechnical DescriptionThird Party Advisory
- www.silabs.com/wireless/bluetooth/bluegiga-classic-legacy-modules/device.wt32i-anvdProductVendor Advisory
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