Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Ricoh | SP 330DN | 20260813 | — |
| Ricoh | SP 221 | 20260813 | — |
| Ricoh | SP C252SF | 20260813 | — |
| Ricoh | Aficio SP 3500SF | 20260813 | — |
References
- VDB-410908 | Ricoh SP 330DN/SP 221/SP C252SF/Aficio SP 3500SF HTTP Multipart Form-Data denial of service vdb-entry
- VDB-410908 | CTI Indicators (IOB, IOC, TTP) signature permissions-required
- CVE-2026-101040 | CVE Analysis and Report third-party-advisory
- Submit #927274 | RICOH RICOH SP 330DN V1.11 Denial of Service third-party-advisory
- Submit #927275 | RICOH SP 221 V1.02 Denial of Service (Duplicate) third-party-advisory
- Submit #927289 | RICOH SP C252SF V1.17 Denial of Service (Duplicate) third-party-advisory
- Submit #927478 | RICOH Aficio SP 3500SF V2.14 Stack-based Buffer Overflow (Duplicate) third-party-advisory
- https://github.com/xiaobor123/vuls-find-VxWorks/tree/main/RICOH/03-SP330DN-multipart-parser-infinite-loop related
- https://github.com/xiaobor123/vuls-find-VxWorks/blob/main/RICOH/03-SP330DN-multipart-parser-infinite-loop/poc.py exploit