CVE-2025-29329: Sagemcom F@st 3686 Firmware

Critical severity, CVSS 9.8. EPSS: 1% chance of exploitation in the next 30 days.

Buffer Overflow in the ippprint (Internet Printing Protocol) service in Sagemcom F@st 3686 MAGYAR_4.121.0 allows remote attacker to execute arbitrary code by sending a crafted HTTP request.

Affected products

• Sagemcom F@st 3686 Firmware: version 4.121.0 only

Published 2026-01-12. Last modified 2026-07-05.