VULNERABILITY INTELLIGENCE

CVE-2020-8290

CVSS score7.8 HIGH
EPSS probability0.59%
CISA KEVNot currently listed
Published2020-12-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

Weakness classification

  • support@hackerone.com: CWE-269
  • nvd@nist.gov: CWE-269

Primary references