Fire-Boltt BSW013 firmware through V0.0.8 Unauthenticated Heart Rate Disclosure via BLE

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

Fire-Boltt BSW013 smartwatch firmware through V0.0.8 contains a missing authentication vulnerability that allows unpaired BLE devices to subscribe to the Heart Rate Measurement characteristic (0x2A37). Attackers within Bluetooth range can receive the wearer's live heart rate readings without pairing, bonding, or any confirmation on the watch.

Source published

12 Oct 2026 20:55:23 UTC

Source modified

26 Oct 2026 16:46:47 UTC

Observed here

26 Oct 2026 17:35:31 UTC

Source terms

CVE Program Terms of Use

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CVSS 4.0 · 2.3 CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1 · 4.3 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N