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CVE-2023-26067

Public exploit available. Not confirmed exploited in the wild yet. Fixed versions are out.

CVSS 3.18.1HighEPSS percentile99th38% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
Public exploit: 1 sourceFix5 products5 fixed builds listed below

Published Updated Sources: CVE.org, NVD

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Lexmark Cxtpc FirmwareAffected: < cxtpc.081.232Upgrade to: cxtpc.081.232Stated by: NVD
  • Lexmark Cstpc FirmwareAffected: < cstpc.081.232Upgrade to: cstpc.081.232Stated by: NVD
  • Lexmark Mxtct FirmwareAffected: < mxtct.081.232Upgrade to: mxtct.081.232Stated by: NVD
  • Lexmark Mxtpm FirmwareAffected: < mxtpm.081.232Upgrade to: mxtpm.081.232Stated by: NVD
  • Lexmark Cxtmm FirmwareAffected: < cxtmm.081.232Upgrade to: cxtmm.081.232Stated by: NVD

Versions as the sources state them. 21 more products have version data. Full version matrix after sign-in

Check it yourselfA free Nuclei and OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Discuss checks for your systems with a specialist. Scope is agreed before testing.

What it is

From the CVE record

Certain Lexmark devices through 2023-02-19 mishandle Input Validation (issue 1 of 4).

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS99th
Public exploit
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in
EPSS

38% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

The patch came 388 days before any public exploit.

  1. OpenVAS check added
  2. EPSS band changecritical → moderate
  3. Public exploit / PoCsource: packetstormnuclei check added
  4. Patch availablerecord updated
  5. Publishedweakness classified, att&ck mapped

Affected products

And 19 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

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

Scored 8.1 by NVD.

How it is reached

  • Attack Vector NetworkExploitable remotely over the network without any special conditions
  • Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
  • Privileges Required NoneNo authentication required — anyone can exploit this
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality HighTotal information disclosure — all data in the component is compromised
  • Integrity HighTotal loss of integrity — attacker can modify any data in the component
  • Availability HighTotal denial of service — the component is completely unavailable

Weaknesses

ATT&CK techniques

Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.

Sources

References in the record

Watch the software you run.

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We'll flag the next CVE, public exploit or patch for Cxtpc Firmware, not every advisory. This one: public exploit.