CVE-2023-28339: Opendoas Project Opendoas

High severity, CVSS 8.8. EPSS: 0.6% chance of exploitation in the next 30 days.

OpenDoas through 6.8.2, when TIOCSTI is available, allows privilege escalation because of sharing a terminal with the original session. NOTE: TIOCSTI is unavailable in OpenBSD 6.0 and later, and can be made unavailable in the Linux kernel 6.2 and later.

Affected products

• Opendoas Project Opendoas: up to and including 6.8.2

Published 2023-03-14. Last modified 2026-06-17.