CVE-2021-20121

low-risk
Published 2021-10-11

The Telus Wi-Fi Hub (PRV65B444A-S-TS) with firmware version 3.00.20 is vulnerable to an authenticated arbitrary file read. An authenticated user with physical access to the device can read arbitrary files from the device by preparing and connecting a specially prepared USB drive to the device, and making a series of crafted requests to the device's web interface.

Do I need to act?

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0.07% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.0/10 Medium
PHYSICAL / HIGH complexity

Affected Products (1)

Prv65B444A-S-Ts Firmware

Affected Vendors

Telus

References (2)

Exploit https://www.tenable.com/security/research/tra-2021-41
Exploit https://www.tenable.com/security/research/tra-2021-41
15
/ 100
low-risk
Severity 10/34 · Low
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal