CVE-2020-8289

PoC ×2—

CVSS 3.1

7.8 high

EPSS

5%p91

Published

Dec 27, 2020 (Dec 27, 2020)

Modified

Jun 17, 2026

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.

Vendors: backblaze
Products: backblaze
Weakness: CWE-295
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (4.7%)

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