CVE-2001-0026: Roaring Penguin Pppoe

Medium severity, CVSS 5.0. EPSS: 8.4% chance of exploitation in the next 30 days.

rp-pppoe PPPoE client allows remote attackers to cause a denial of service via the Clamp MSS option and a TCP packet with a zero-length TCP option.

Affected products

• Roaring Penguin Pppoe: version 2.0 only; version 2.1 only; version 2.2 only; version 2.3 only; version 2.4 only

Published 2001-02-12. Last modified 2026-06-16.