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VulnerabilityPublished Updated

CVE-2026-101040: Ricoh SP 330DN · Denial of Service

Affects Ricoh SP 330DNSource CVE Database V5

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Public exploit available · CVSS 7.1 High.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 4.0 base score
7.1High
How severe the flaw is on the 0–10 CVSS scale.
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:P

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    CVSS exploit maturity: proof of concept public

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
RicohSP 330DNAffected
  • =20260813
Fixed in–
RicohSP 221Affected
  • =20260813
Fixed in–
RicohSP C252SFAffected
  • =20260813
Fixed in–
RicohAficio SP 3500SFAffected
  • =20260813
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

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