CVE-2021-35954 Security feature bypass in n/a

High 8.1 Published Updated

Physically proximate attackers can dump firmware, flash malicious code, or brick the device via the Serial Wire Debug interface.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-35954?

CVE-2021-35954 is a high-severity vulnerability in n/a, published on 26 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

fastrack Reflex 2.0 W307S_REFLEX_v90.89 Activity Tracker allows physically proximate attackers to dump the firmware, flash custom malicious firmware, and brick the device via the Serial Wire Debug (SWD) feature.

Which versions are affected by CVE-2021-35954?

It affects 1 product.

Products include Fastrack Reflex 2.0 Firmware.

How do I fix CVE-2021-35954?

No fix has been published for CVE-2021-35954 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-35954 being exploited?

There is no known exploitation of CVE-2021-35954 in the wild and no public exploit code.

Sources

Also known as GHSA-wh39-w6w2-hmvf.

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