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Workcentre 3655i FirmwareOperating system · Xerox

CVE-2018-20770

CRITICAL · 9.8 CVSS v3.0 Published 2019-02-10
Fix available
A fix is available. Upgrade to 073.060.048.15000 / 073.190.048.15000 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
An issue was discovered on Xerox WorkCentre 3655, 3655i, 58XX, 58XXi, 59XX, 59XXi, 6655, 6655i, 72XX, 72XXi, 78XX, 78XXi, 7970, 7970i, EC7836, and EC7856 devices before R18-05 073.xxx.0487.15000. There is Blind SQL Injection.

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

Blind SQL Injection vulnerability in Xerox WorkCentre multifunction printer devices (models 3655, 3655i, 58XX-58XXi, 59XX-59XXi, 6655-6655i, 72XX-72XXi, 78XX-78XXi, 7970-7970i, EC7836, EC7856) before firmware R18-05 073.xxx.0487.15000. The vulnerability is remotely exploitable without authentication and allows attackers to inject malicious SQL queries, potentially exposing sensitive data or compromising the device.

MitigationApply vendor firmware update R18-05 (073.xxx.0487.15000) or later. If immediate patching is not feasible, restrict network access to the device management interface using network segmentation or firewall rules.

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
Workcentre 3655i FirmwareOperating system
Affected:< 073.060.048.15000
Workcentre 3655 FirmwareOperating system
Affected:< 073.060.048.15000
Workcentre 5890i FirmwareOperating system
Affected:< 073.190.048.15000
Workcentre 5865i FirmwareOperating system
Affected:< 073.190.048.15000
Workcentre 5875i FirmwareOperating system
Affected:< 073.190.048.15000
Workcentre 5845 FirmwareOperating system
Affected:< 073.190.048.15000
Workcentre 5865 FirmwareOperating system
Affected:< 073.190.048.15000
Workcentre 5875 FirmwareOperating system
Affected:< 073.190.048.15000

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 WorkCentre model
    Access the device web interface or check the physical label to confirm the exact model number (e.g., 3655, 3655i, 5865, 5875i, etc.)
    Affected if The model is one of: 3655, 3655i, 58XX-58XXi, 59XX-59XXi, 6655-6655i, 72XX-72XXi, 78XX-78XXi, 7970-7970i, EC7836, EC7856
  2. Retrieve the firmware version
    Log into the device web interface and navigate to the Properties or About page, or print a configuration page from the device control panel to view the installed firmware version (format: 073.xxx.048.xxxxxx)
    Affected if The firmware version is below 073.060.048.15000 for 3655/3655i models, or below 073.190.048.15000 for 58XX/58XXi/59XX models, or below 073.xxx.0487.15000 for other affected models
  3. Verify management interface exposure
    Check if the device web management interface (HTTP/HTTPS on port 80/443) is accessible from untrusted networks by scanning the device IP or reviewing firewall rules
    Affected if The web interface is reachable from outside the local network or from untrusted VLANs without access controls
  4. Confirm vulnerability is exploitable
    Send a crafted SQL injection payload to the web login or query parameters (e.g., ' OR '1'='1) and observe if the application returns database-related errors or behaves differently than expected
    Affected if The device responds with SQL errors, exhibits unexpected behavior, or allows authentication bypass when injecting SQL syntax into login fields

The environment is affected if the device is a vulnerable WorkCentre model (3655/3655i/58XX-59XX/6655-72XX/78XX/7970/EC7XXX series) AND the firmware version is below the R18-05 threshold (073.xxx.0487.15000) AND the management interface is network-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 073.060.048.15000 / 073.190.048.15000 or later
Fixed in 073.060.048.15000073.190.048.15000
Interim mitigation

Apply vendor firmware update R18-05 (073.xxx.0487.15000) or later. If immediate patching is not feasible, restrict network access to the device management interface using network segmentation or firewall rules.

Recommended fix High confidence

R18-05 firmware (073.xxx.0487.15000 or higher)

  1. 1. Identify the exact WorkCentre model number from the device front panel or label
  2. 2. Download the R18-05 firmware update from the official Xerox support website (securitydocs.business.xerox.com) matching your specific model
  3. 3. Transfer the firmware file to the device via USB or network, following Xerox firmware update instructions
  4. 4. Initiate the firmware upgrade through the device's web interface (CentreWare) or front panel controls
  5. 5. Wait for the upgrade to complete and the device to fully reboot - do not power off during this process
  6. 6. Verify the firmware version has been updated to 073.xxx.0487.15000 or higher after reboot
Caveat Firmware upgrades may temporarily disrupt device operation; ensure print jobs are completed before initiating upgrade

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

Fix this in Workcentre 3655i Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation3.0 h
  • Testing4.0 h
  • Review / QA1.0 h
10.0 hours of engineering $1,720
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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-2018-20770 in production — separate from our analysis above.

No notes yet

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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