ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2023-39143

PaperCut papercut_mf Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Published Oct 17, 2025 · catalog updated Oct 17, 2025 · PaperCut

Patch now

CVE-2023-39143 is in the CISA known-exploited catalog. Confirm PaperCut against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
Unknown—
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
80.06%
Remediation
Remediation guidance
Affected products
vendor PaperCut papercut_mf

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration). VulnCheck canary evidence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor PaperCut papercut_mfversion unspecified

How to fix CVE-2023-39143

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2023-39143 is in the CISA known-exploited catalog. Confirm PaperCut against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

No weakness class is stored. EPSS 80.06%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 17, 2025 · VulnCheck KEV

    Detected

    PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration). VulnCheck canary evidence.

  2. Oct 17, 2025 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

Sources

  • CVE.orgVulnerability recordCVE-2023-39143

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-39143

    30-day exploitation probability 80.1%

    first.org
  • VulnCheck KEVConfirmed exploitationCVE-2023-39143

    PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete arbitrary files. This leads to remote code execution when external device integration is enabled (a very common configuration).

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.