CVE-2021-35951 describes a critical vulnerability in the fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker, allowing an unauthenticated remote attacker to send a malicious firmware update. This flaw, rated High severity with a CVSS score of 7.5, can lead to the device being bricked due to a denial of service. The attack requires no authentication and has low complexity, leveraging Bluetooth Low Energy (BLE) for exploitation. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
90.89CPE matchmatch criteria | cpe:2.3:o:fastrack:reflex_2.0_firmware:90.89:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.