---
id: CVE-2025-29329
title: >-
  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.
summary: >-
  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.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-120
vendor: sagemcom
product: f@st_3686_firmware
affected:
  - f@st_3686_firmware = 4.121.0
published: '2026-01-12'
updated: '2026-07-05'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-29329'
references:
  - url: 'https://github.com/SilverS3c/Sagemcom-fast-3686-ippprint'
    label: cve@mitre.org
tags:
  - nvd
epss: 0.00976
epssPercentile: 0.60649
ingestedAt: '2026-07-06T16:44:34.504Z'
---

## Overview

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

- `f@st_3686_firmware = 4.121.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.