Auth bypass in N/a

CVE-2026-37271

Fire-Boltt Smartwatch FB BGS001 Firmware: MOY-JS14-2.0.4 is vulnerable to Improper Authentication, The device accepts GATT Write Request commands without sufficient authentication or strong session validation. Under specific conditions, previously captured BLE packets can be replayed from a nearby device to trigger functionality on the smartwatch.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (49.1th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-37271: held from 0.006 to 0.006.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-37271?
CVE-2026-37271 is a critical-severity vulnerability in N/a, classified under Improper Authentication. CVSS score: 9.8/10. Published 2026-07-07.
How severe is CVE-2026-37271?
Critical severity. CVSS v3 base score is 9.8 out of 10.