CVE-2021-20121

MEDIUMCVSS 4/10EPSS 0.48%

Last modified

CVE-2021-20121 is a medium-severity vulnerability rated 4/10 on the CVSS scale. 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.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
4/10

CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability
0.48%

37.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
TelusPrv65b444a-S-Ts Firmware3.00.20

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-20121?
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.
How severe is CVE-2021-20121?
CVE-2021-20121 has a CVSS score of 4/10 (MEDIUM severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20121?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-20121?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST