CVE-2021-31613
Last modified
CVE-2021-31613 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle the reception of a truncated LMP packet during the LMP auto rate procedure, allowing attackers in radio range to immediately crash (and restart) a device via a crafted LMP packet.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.
Description
The Bluetooth Classic implementation on Zhuhai Jieli AC690X and AC692X devices does not properly handle the reception of a truncated LMP packet during the LMP auto rate procedure, allowing attackers in radio range to immediately crash (and restart) a device via a crafted LMP packet.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zh-Jieli | Ac6901 Firmware | All versions |
| Zh-Jieli | Ac6925 Firmware | All versions |
| Zh-Jieli | Ac6926 Firmware | All versions |
| Zh-Jieli | Ac6928 Firmware | All versions |
| Zh-Jieli | Ac6921 Firmware | All versions |
References
- http://www.zh-jieli.com/product/68-cn.htmlProduct, Vendor Advisory
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfTechnical Description, Third Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/19746Third Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/58628Third Party Advisory
- http://www.zh-jieli.com/product/68-cn.htmlProduct, Vendor Advisory
- https://dl.packetstormsecurity.net/papers/general/braktooth.pdfTechnical Description, Third Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/19746Third Party Advisory
- https://launchstudio.bluetooth.com/ListingDetails/58628Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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