CVE-2021-36710: Toaruos

High severity, CVSS 8.8. EPSS: 0.3% chance of exploitation in the next 30 days.

ToaruOS 1.99.2 is affected by incorrect access control via the kernel. Improper MMU management and having a low GDT address allows it to be mapped in userland. A call gate can then be written to escalate to CPL 0.

Affected products

• Toaruos Toaruos: version 1.99.2 only

Published 2022-06-08. Last modified 2026-06-17.