CVE-2001-1068: Qualcomm Qpopper

Medium severity, CVSS 5.0. EPSS: 1.1% chance of exploitation in the next 30 days.

qpopper 4.01 with PAM based authentication on Red Hat systems generates different error messages when an invalid username is provided instead of a valid name, which allows remote attackers to determine valid usernames on the system.

Affected products

• Qualcomm Qpopper: version 4.0.1 only

Published 2001-08-31. Last modified 2026-06-16.