CVE-2020-10870: Zim-Wiki Zim

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Zim through 0.72.1 creates temporary directories with predictable names. A malicious user could predict and create Zim's temporary directories and prevent other users from being able to start Zim, resulting in a denial of service.

Affected products

• Zim-Wiki Zim: up to and including 0.72.1

Published 2020-03-23. Last modified 2026-06-17.