dbcve.org
C2132 FirmwareOperating system · Lexmark

CVE-2023-40239

HIGH · 7.5 CVSS v3.1 Published 2023-09-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
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
Certain Lexmark devices (such as CS310) before 2023-08-25 allow XXE attacks, leading to information disclosure. The fixed firmware version is LW80.*.P246, i.e., '*' indicates that the full version specification varies across product model family, but firmware level P246 (or higher) is required to remediate the vulnerability.

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

This is an XML External Entity (XXE) injection vulnerability in Lexmark CS310 and related printer devices. The flaw allows unauthenticated attackers to inject malicious XML payloads to access sensitive files or conduct reconnaissance. The vulnerability exists in the firmware versions prior to the August 2023 update.

MitigationApply Lexmark firmware version LW80.*.P246 or higher to affected devices. Prior to deployment, inventory all Lexmark devices on the network and verify current firmware versions.

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
C2132 FirmwareOperating system
Affected:<= lw80.vy4.p245
Cs310 FirmwareOperating system
Affected:<= lw80.vyl.p245
Cs317 FirmwareOperating system
Affected:<= lw80.vyl.p245
Cs410 FirmwareOperating system
Affected:<= lw80.vy2.p245
Cs417 FirmwareOperating system
Affected:<= lw80.vy2.p245
Cs510 FirmwareOperating system
Affected:<= lw80.vy4.p245
Cs517 FirmwareOperating system
Affected:<= lw80.vy4.p245
Cx310 FirmwareOperating system
Affected:<= lw80.gm2.p245

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
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 Lexmark devices on the network
    Scan the network for devices with Lexmark vendor OUI or probe for Lexmark web interfaces (typically ports 80/443/8080). Check DHCP logs or use Nmap with service detection: nmap -sV --script=banner <target>
    Affected if Any Lexmark printer model C2132, CS310, CS317, CS410, CS417, CS510, CS517, or CX310 is found on the network
  2. Retrieve the firmware version
    Access the printer web interface (Embedded Web Server) and navigate to Settings > Reports > Device Information, or use the printer control panel to print a menu settings page. The firmware version appears as lw80.x.x.x format
    Affected if Firmware version cannot be determined or the device is unreachable for version check
  3. Compare firmware version against affected ranges
    Compare the installed firmware version to these affected versions: C2132 <= lw80.vy4.p245, CS310/CS317 <= lw80.vyl.p245, CS410/CS417 <= lw80.vy2.p245, CS510/CS517 <= lw80.vy4.p245, CX310 <= lw80.gm2.p245. The P245 suffix or lower indicates vulnerability
    Affected if The installed firmware version is lw80.x.x.p245 or lower (numerically <= p245 in the final segment)
  4. Verify XML processing service is accessible
    Check if the printer web interface or any XML-based service (such as WSD, SNMP, or custom XML endpoints) is exposed to the network. Attempt a simple HTTP GET to the root web page: curl -k https://<printer-ip>
    Affected if The printer web interface is accessible from untrusted network segments (the XXE can be exploited over the network)

A Lexmark printer model C2132, CS310, CS317, CS410, CS417, CS510, CS517, or CX310 with firmware version lw80.x.x.p245 or lower and an accessible web interface is affected by this XXE vulnerability.

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
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Lexmark firmware version LW80.*.P246 or higher to affected devices. Prior to deployment, inventory all Lexmark devices on the network and verify current firmware versions.

Recommended fix High confidence

Firmware version P246 (LW80.*.P246) or higher

  1. Identify your specific Lexmark model from the affected list (C2132, CS310, CS317, CS410, CS417, CS510, CS517, or CX310)
  2. Check the current firmware version installed on the device
  3. Download the firmware update package labeled LW80.*.P246 or higher from the official Lexmark support site (referenced at publications.lexmark.com)
  4. Apply the firmware update to the device following Lexmark's standard firmware update procedure
  5. After updating, verify the firmware version has been successfully upgraded to P246 or higher
  6. Confirm the vulnerability is remediated by validating the new firmware level

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

Fix this in C2132 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing3.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,050
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,880.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-40239 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2023-40239 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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