CVE-2017-15357: Arqbackup Arq

High severity, CVSS 7.4. EPSS: 1.2% chance of exploitation in the next 30 days.

The setpermissions function in the auto-updater in Arq before 5.9.7 for Mac allows local users to gain root privileges via a symlink attack on the updater binary itself.

Affected products

• Arqbackup Arq: before 5.9.7 (fixed in 5.9.7)

Published 2017-12-01. Last modified 2026-06-17.