CVE-2020-8290

PoC ×2—

CVSS 3.1

7.8 high

EPSS

<1%p46

Published

Dec 27, 2020 (Dec 27, 2020)

Modified

Jun 17, 2026

Description

Backblaze for Windows and Backblaze for macOS before 7.0.0.439 suffer from improper privilege management in `bztransmit` helper due to lack of permission handling and validation before creation of client update directories allowing for local escalation of privilege via rogue client update binary.

Vendors: backblaze
Products: backblaze
Weakness: CWE-269
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (0.6%)

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