High severity7.5NVD Advisory· Published Dec 26, 2022· Updated Jun 17, 2026
CVE-2021-35953
CVE-2021-35953
Description
fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows a Remote attacker to cause a Denial of Service (device outage) via crafted choices of the last three bytes of a characteristic value.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4(expand)+ 1 more
- (no CPE)
- (no CPE)
- cpe:2.3:o:fastrack:reflex_2.0_firmware:90.89:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- payatu.com/advisory/device-crash-fastrack-reflex-two-activity-trackernvdThird Party Advisory
- www.fastrack.in/shop/watch-smart-wearables-reflex-2nvdBroken Link
News mentions
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