CVE-1999-0247: ISC Inn

High severity, CVSS 7.5. EPSS: 4% chance of exploitation in the next 30 days.

Buffer overflow in nnrpd program in INN up to version 1.6 allows remote users to execute arbitrary commands.

Affected products

• ISC Inn: version 1.4 only; version 1.4sec only; version 1.4sec2 only; version 1.4unoff3 only; version 1.4unoff4 only; version 1.5 only; …

Published 1997-07-21. Last modified 2026-06-16.