Misuse and Misconfiguration of Cryptographic Algorithm in Bluetooth Communication
Summary
| CVE | CVE-2026-8374 |
|---|---|
| State | PUBLISHED |
| Assigner | cirosec |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-09 13:17:11 UTC |
| Updated | 2026-10-15 19:17:48 UTC |
| Description | Misuse and misconfiguration in Bluetooth communication in SwitchBot Door Lock Series allows an attacker to bypass the electronic lock and access controls via a manipulated communication protocol. |
Risk And Classification
Primary CVSS: v4.0 8.5 HIGH from a341c0d1-ebf7-493f-a84e-38cf86618674
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:I/V:D/RE:H/U:Red
EPSS: 0.000890000 probability, percentile 0.003950000 (date 2026-10-11)
Problem Types: CWE-1204 | CWE-1240 | CWE-1204 CWE-1204 Generation of weak initialization vector (IV) | CWE-1240 CWE-1240 Use of a cryptographic primitive with a risky implementation
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | a341c0d1-ebf7-493f-a84e-38cf86618674 | Secondary | 8.5 | HIGH | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/C... |
| 4.0 | CNA | CVSS | 8.5 | HIGH | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/S:P/A... |
CVSS v4.0 Breakdown
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:N/R:I/V:D/RE:H/U:Red
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | SwitchBot | Lock Series Lock | affected 3.4 custom | Not specified |
| CNA | SwitchBot | Lock Series Keypad | affected 2.7 custom | Not specified |
| CNA | SwitchBot | Lock Series App | affected 9.2.6 custom | Android |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| neodyme.io/en/blog/switchbot | a341c0d1-ebf7-493f-a84e-38cf86618674 | neodyme.io | |
| neodyme.io/en/advisories/cve-2026-8374 | a341c0d1-ebf7-493f-a84e-38cf86618674 | neodyme.io | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Aaron Kaiser (Neodyme AG) (en)
CNA: Tobias Madl (Neodyme AG) (en)
CNA: Justin Mietzner (Neodyme AG) (en)