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One Data Loss PreventionApplication · Forcepoint

CVE-2025-14026

HIGH · 7.8 CVSS v3.1 Published 2026-01-06
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
80/100
Remediation priority · High
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
Forcepoint One DLP Client, version 23.04.5642 (and possibly newer versions), includes a restricted version of Python 2.5.4 that prevents use of the ctypes library. ctypes is a foreign function interface (FFI) for Python, enabling calls to DLLs/shared libraries, memory allocation, and direct code execution. It was demonstrated that these restrictions could be bypassed.

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 · moderate confidence

Forcepoint One DLP Client ships with a restricted Python 2.5.4 environment where the ctypes library (a foreign function interface enabling DLL/shared library calls, memory allocation, and direct code execution) is intentionally disabled. Researchers demonstrated that these security restrictions can be bypassed, allowing attackers to leverage ctypes for arbitrary code execution.

MitigationApply vendor-supplied patches when available; until then, restrict client system access, monitor for suspicious DLL loading, and consider application whitelisting as a defense-in-depth measure.

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
One Data Loss PreventionApplication
Affected:= 23.04.5642

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
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/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. Verify Forcepoint One DLP Client installation
    Locate the Forcepoint One DLP Client installation directory, typically under Program Files or Program Files (x86) with 'Forcepoint' in the path. Check for the presence of the main executable (often named endpoint.exe, FpOneDLP.exe, or similar Forcepoint binaries).
    Affected if The client software is not present on the system, indicating the product is not installed and the CVE does not apply.
  2. Confirm installed version matches affected release
    Right-click the main Forcepoint executable, select Properties, and check the File Version, or query via command line: 'wmic product where "name like '%Forcepoint%One%' get name,version'. Compare the version to 23.04.5642.
    Affected if The installed version is exactly 23.04.5642, meaning the environment contains the vulnerable restricted Python 2.5.4 environment.
  3. Identify the bundled Python environment
    Navigate to the Forcepoint installation directory and locate the Python subfolder (often named 'Python25', 'python', or embedded within the client directory). Check for python.exe version 2.5.4 and verify the presence of the ctypes module directory or ctypes.pyd file.
    Affected if The ctypes library (ctypes.py or ctypes.pyd) exists in the Python distribution bundled with the client, indicating the restriction bypass may have occurred.
  4. Inspect ctypes module accessibility
    Attempt to execute the embedded Python interpreter with a test script: navigate to the Python folder and run 'python.exe -c "import ctypes; print(ctypes)"'. If the import succeeds without error, the security restriction is bypassed.
    Affected if The ctypes module imports successfully, confirming the intentional disable was bypassed and arbitrary code execution is possible.
  5. Monitor for suspicious DLL loading behavior
    Use Windows Process Monitor (ProcMon) filtered to the Forcepoint client executable, or review Windows Event Logs under Security/Application for DLL load events originating from the Forcepoint client process.
    Affected if The Forcepoint client process loads DLLs from unexpected locations or non-standard paths, indicating potential exploitation of the ctypes capability.

The system is affected if Forcepoint One DLP Client version 23.04.5642 is installed and the ctypes module is accessible in the bundled Python 2.5.4 environment, indicating the security restriction bypass is present.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply vendor-supplied patches when available; until then, restrict client system access, monitor for suspicious DLL loading, and consider application whitelisting as a defense-in-depth measure.

Fix this in One Data Loss Prevention Scoped from the published advisory
  • Consultation8.0 h
  • Implementation16.0 h
  • Testing12.0 h
  • Review / QA4.0 h
40.0 hours of engineering $7,000
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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-2025-14026 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
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  • Version or environment caveats, and links to real fixes
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