CVE-2000-0583: INTER7 Vpopmail Vchkpw

Medium severity, CVSS 5.0. EPSS: 1.7% chance of exploitation in the next 30 days.

vchkpw program in vpopmail before version 4.8 does not properly cleanse an untrusted format string used in a call to syslog, which allows remote attackers to cause a denial of service via a USER or PASS command that contains arbitrary formatting directives.

Affected products

• INTER7 Vpopmail Vchkpw: version 4.5 only; version 4.7 only

Published 2000-06-30. Last modified 2026-06-16.