HIGH

CVE-2020-8289

CVSS v3

7.8

HIGH

EPSS Score

20.5%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.

Technical details

Published
12/27/2020

Frequently asked questions

What is CVE-2020-8289?

Backblaze for Windows before 7.0.1.433 and Backblaze for macOS before 7.0.1.434 suffer from improper certificate validation in `bztransmit` helper due to hardcoded whitelist of strings in URLs where validation is disabled leading to possible remote code execution via client update functionality.

Is CVE-2020-8289 actively exploited?

Active exploitation of CVE-2020-8289 has not been confirmed. The EPSS score is 20.5%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-8289?

CVE-2020-8289 has a CVSS v3 base score of 7.8 (HIGH severity).

Is CVE-2020-8289 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.