CVE-1999-1139: HP HP-Ux

High severity, CVSS 7.2. EPSS: 0.5% chance of exploitation in the next 30 days.

Character-Terminal User Environment (CUE) in HP-UX 11.0 and earlier allows local users to overwrite arbitrary files and gain root privileges via a symlink attack on the IOERROR.mytty file.

Affected products

• HP HP-Ux: up to and including 11.00

Published 1997-09-01. Last modified 2026-06-16.