CVE-2026-101040: Ricoh SP 330DN · Denial of Service
Affects Ricoh SP 330DNSource CVE Database V5
Public exploit available · CVSS 7.1 High.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 36% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:PExploitation evidence
Disclosed: evidence found.
CVE published 28 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| RicohSP 330DN | Affected
| Fixed in– |
| RicohSP 221 | Affected
| Fixed in– |
| RicohSP C252SF | Affected
| Fixed in– |
| RicohAficio SP 3500SF | Affected
| Fixed in– |
CPE configurations (4)
cpe:2.3:a:ricoh:sp_330dn:*:*:*:*:*:*:*:*cpe:2.3:a:ricoh:sp_221:*:*:*:*:*:*:*:*cpe:2.3:a:ricoh:sp_c252sf:*:*:*:*:*:*:*:*cpe:2.3:a:ricoh:aficio_sp_3500sf:*:*:*:*:*:*:*:*
AI-suggested
In the meantime, consider network-level mitigations such as restricting access to the affected devices' management interfaces to trusted hosts only.
Description
A denial of service vulnerability exists in Ricoh SP 330DN, SP 221, SP C252SF, and Aficio SP 3500SF devices up to version 20260813. The flaw is in the HTTP Multipart Form-Data Parser component and can be exploited remotely without user interaction. The vendor has not responded to the disclosure, and a public exploit is available.
References
- vuldb.com/vuln/410908 (opens in a new tab)
- vuldb.com/vuln/410908/cti (opens in a new tab)
- vuldb.com/cve/CVE-2026-101040 (opens in a new tab)
- vuldb.com/submit/927274 (opens in a new tab)
- vuldb.com/submit/927275 (opens in a new tab)
- vuldb.com/submit/927289 (opens in a new tab)
- vuldb.com/submit/927478 (opens in a new tab)
- github.com/xiaobor123/vuls-find-VxWorks/tree/main/RICOH/03-SP330DN-multipart-parser-infinite-loop (opens in a new tab)
- github.com/xiaobor123/vuls-find-VxWorks/blob/main/RICOH/03-SP330DN-multipart-parser-infinite-loop/poc.py (opens in a new tab)