TI-2026-65073 Aliases CVE-2026-101040 GHSA-7hj2-7h7h-f38x

Ricoh SP 330DN/SP 221/SP C252SF/Aficio SP 3500SF HTTP Multipart Form-Data denial of service

MEDIUM 64CWE-404Published 2026-09-28 · Updated 2026-10-01

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

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 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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0042 36th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Ricoh Company, Ltd.	SP 330DN	20260813	—	No fix listed	CNA
Ricoh Company, Ltd.	SP 221	20260813	—	No fix listed	CNA
Ricoh Company, Ltd.	SP C252SF	20260813	—	No fix listed	CNA
Ricoh Company, Ltd.	Aficio SP 3500SF	20260813	—	No fix listed	CNA

SP 330DN VendorRicoh Company, Ltd. Affected 20260813 Fixed in — No fix listed CNA
SP 221 VendorRicoh Company, Ltd. Affected 20260813 Fixed in — No fix listed CNA
SP C252SF VendorRicoh Company, Ltd. Affected 20260813 Fixed in — No fix listed CNA
Aficio SP 3500SF VendorRicoh Company, Ltd. Affected 20260813 Fixed in — No fix listed CNA

CPE names CNA · 4

CPE	Versions	Role	Vendor
cpe:2.3:a:ricoh:sp_330dn::::::::	—	—	Ricoh Company, Ltd.
cpe:2.3:a:ricoh:sp_221::::::::	—	—	Ricoh Company, Ltd.
cpe:2.3:a:ricoh:sp_c252sf::::::::	—	—	Ricoh Company, Ltd.
cpe:2.3:a:ricoh:aficio_sp_3500sf::::::::	—	—	Ricoh Company, Ltd.

cpe:2.3:a:ricoh:sp_330dn:*:*:*:*:*:*:*:* Versions — — ·Ricoh Company, Ltd.
cpe:2.3:a:ricoh:sp_221:*:*:*:*:*:*:*:* Versions — — ·Ricoh Company, Ltd.
cpe:2.3:a:ricoh:sp_c252sf:*:*:*:*:*:*:*:* Versions — — ·Ricoh Company, Ltd.
cpe:2.3:a:ricoh:aficio_sp_3500sf:*:*:*:*:*:*:*:* Versions — — ·Ricoh Company, Ltd.

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-101040
2026-10-03 Alias added: GHSA-7hj2-7h7h-f38x

References

Exploit 1

https://github.com/xiaobor123/vuls-find-VxWorks/blob/main/RICOH/03-SP330DN-multipart-parser-infinite-loop/poc.py

Other 1

https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/RICOH/03-SP330DN-multipart-parser-infinite-loop

TI-2024-34873 Unauthenticated Denial of Service (DoS) via malformed WS-Scan request affecting multiple… CVSS 3.1HIGH 7.5
TI-2024-34872 Unauthenticated Denial of Service (DoS) via malformed PJL request affecting multiple… CVSS 3.1HIGH 7.5
TI-2024-34869 Stack-based buffer overflow in Brother Industries, Ltd HL-L8260CDN CVSS 3.1HIGH 7.2
TI-2024-34874 Insufficiently protected credentials in Brother Industries, Ltd HL-L8260CDN CVSS 3.1MEDIUM 6.8
TI-2024-34871 Server-side request forgery in Brother Industries, Ltd HL-L8260CDN CVSS 3.1MEDIUM 5.3
TI-2024-34870 Server-side request forgery in Brother Industries, Ltd HL-L8260CDN CVSS 3.1MEDIUM 5.3

See all 74 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences