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Sp C250sf FirmwareOperating system · Ricoh

CVE-2019-14308

CRITICAL · 9.8 CVSS v3.0 Published 2019-08-26
Fix available
A fix is available. Upgrade to 1.07 / 1.13 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Several Ricoh printers have multiple buffer overflows parsing LPD packets, which allow an attacker to cause a denial of service or code execution via crafted requests to the LPD service. Affected firmware versions depend on the printer models. One affected configuration is cpe:2.3:o:ricoh:sp_c250dn_firmware:-:*:*:*:*:*:*:* up to (including) 1.06 running on cpe:2.3:o:ricoh:sp_c250dn:-:*:*:*:*:*:*:*, cpe:2.3:o:ricoh:sp_c252dn:-:*:*:*:*:*:*:*. Another affected configuration is cpe:2.3:o:ricoh:sp_c250sf_firmware:-:*:*:*:*:*:*:* up to (including) 1.12 running on cpe:2.3:o:ricoh:sp_c250sf:-:*:*:*:*:*:*:*, cpe:2.3:o:ricoh:sp_c252sf:-:*:*:*:*:*:*:*.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Multiple buffer overflow vulnerabilities exist in the LPD (Line Printer Daemon) service of specific Ricoh printer models (SP C250dn, SP C252dn, SP C250sf, SP C252sf) when parsing incoming LPD packets. These flaws allow remote attackers to cause denial of service or achieve arbitrary code execution with crafted malicious LPD requests.

MitigationUpdate printer firmware to the latest patched version released by Ricoh; alternatively, disable the LPD service if not required and block LPD ports (515/tcp) at network boundaries.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Sp C250sf FirmwareOperating system
Affected:< 1.13
Sp C252sf FirmwareOperating system
Affected:< 1.13
Sp C250dn FirmwareOperating system
Affected:< 1.07
Sp C252dn FirmwareOperating system
Affected:< 1.07

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the Ricoh printer model
    Access the printer's web interface or print a configuration page to confirm the exact model number (SP C250dn, SP C252dn, SP C250sf, or SP C252sf)
    Affected if The model is not one of the four affected models listed in the CVE
  2. Check the firmware version
    Via the printer's web interface under 'Device Settings' or 'System Settings', or print a configuration/status page to view the current firmware version
    Affected if The installed firmware version is below 1.13 for SP C250sf/SP C252sf, or below 1.07 for SP C250dn/SP C252dn
  3. Determine if LPD service is enabled
    Access the printer's web interface and navigate to Network Settings or Services to verify if the LPD (Line Printer Daemon) service is turned on; alternatively, attempt a connection to port 515/tcp
    Affected if The LPD service is enabled and port 515/tcp is accessible
  4. Verify LPD is exposed to untrusted networks
    Scan the network to confirm port 515/tcp is open and assess whether the printer is accessible from network segments that contain untrusted or external systems
    Affected if Port 515/tcp is open and the printer is reachable from networks beyond the trusted local segment

You are affected if you have a Ricoh SP C250sf, SP C252sf with firmware below 1.13, or SP C250dn/SP C252dn with firmware below 1.07, AND the LPD service is enabled and accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.07 / 1.13 or later
Fixed in 1.071.13
Interim mitigation

Update printer firmware to the latest patched version released by Ricoh; alternatively, disable the LPD service if not required and block LPD ports (515/tcp) at network boundaries.

Recommended fix High confidence

Sp C250sf/C252sf: Firmware 1.13 or later; Sp C250dn/C252dn: Firmware 1.07 or later

  1. Identify the exact model number (Sp C250sf, Sp C252sf, Sp C250dn, or Sp C252dn) of the Ricoh printer
  2. Access the printer's web management interface or control panel
  3. Navigate to the firmware update section (usually under Settings, Maintenance, or Device Settings)
  4. Download the firmware update from Ricoh's official support website (ricoh.com or ricoh-usa.com) matching your exact model and current version
  5. Upload and install the firmware version 1.13 or later for Sp C250sf/Sp C252sf models
  6. Upload and install the firmware version 1.07 or later for Sp C250dn/Sp C252dn models
  7. After firmware update, verify the LPD service is running and the version has changed
  8. Consider disabling the LPD service if not required, as an additional hardening step
Caveat Firmware updates may reset some device settings to defaults; back up configuration before updating if possible

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Sp C250sf Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2019-14308 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data