---
id: CVE-2026-101040
title: >-
  A security flaw has been discovered in Ricoh SP 330DN, SP 221, SP C252SF and
  Aficio SP 3500SF up to 20260813
summary: >-
  A security flaw has been discovered in Ricoh SP 330DN, SP 221, SP C252SF and
  Aficio SP 3500SF up to 20260813. This affects an unknown part of the component
  HTTP Multipart Form-Data Parser. Performing a manipulation results in denial
  of s…
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-404
vendor: Ricoh
product: SP 330DN
affected:
  - sp_330dn 20260813
  - sp_221 20260813
  - sp_c252sf 20260813
  - aficio_sp_3500sf 20260813
published: '2026-09-28'
updated: '2026-09-28'
sourceUpdated: '2026-09-28T11:16:43.773'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-101040'
references:
  - url: >-
      https://github.com/xiaobor123/vuls-find-VxWorks/blob/main/RICOH/03-SP330DN-multipart-parser-infinite-loop/poc.py
    label: cna@vuldb.com
  - url: >-
      https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/RICOH/03-SP330DN-multipart-parser-infinite-loop
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-101040'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/927274'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/927275'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/927289'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/927478'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/410908'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/410908/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-28T11:08:06.670Z'
---

## Overview

A security flaw has been discovered in Ricoh SP 330DN, SP 221, SP C252SF and Aficio SP 3500SF up to 20260813. This affects an unknown part of the component HTTP Multipart Form-Data Parser. Performing a manipulation results in denial of service. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

## Remediation

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