Stack-based Buffer OverflowWeakness · CWE-121

CVE-2019-25365

CRITICAL · 9.8 CVSS v3.1 Published 2026-02-18
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit 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
ChaosPro 2.0 contains a buffer overflow vulnerability in the configuration file path handling that allows attackers to execute arbitrary code by overwriting the Structured Exception Handler. Attackers can craft a malicious configuration file with carefully constructed payload to overwrite memory and gain remote code execution on vulnerable Windows XP systems.

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

ChaosPro 2.0 contains a buffer overflow vulnerability in configuration file path handling where insufficient bounds checking allows an attacker to overwrite Structured Exception Handler (SEH) records via a specially crafted malicious configuration file, achieving arbitrary code execution on vulnerable Windows XP systems.

MitigationSince ChaosPro 2.0 appears to be legacy/abandoned software with no current vendor support, organizations should discontinue use of this application. If continued use is required, strictly control configuration file sources and consider application isolation to limit exploitation impact.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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:3.1/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. Locate ChaosPro installation and version
    Search for ChaosPro executable (chaospro.exe) in common program directories (C:\Program Files\ChaosPro, C:\Program Files (x86)\ChaosPro) or check Add/Remove Programs. Note that version 2.0 is explicitly listed as vulnerable.
    Affected if ChaosPro version 2.0 is installed and running on the system
  2. Identify ChaosPro configuration file location
    Locate configuration files typically stored in the application data folder (AppData\ChaosPro or similar) or alongside the executable. Common config file names may include config.xml, settings.xml, or chaospro.cfg.
    Affected if A configuration file exists for ChaosPro and can be modified by an attacker
  3. Inspect configuration file for oversized path strings
    Open the configuration file in a text editor or parse it programmatically. Look for path entries (file paths, directory paths, or image paths) that exceed typical length limits (normal paths under 260 characters on Windows). Malicious configs would contain path strings designed to overflow buffer bounds.
    Affected if Configuration file contains path strings that appear unusually long or exceed normal path length expectations (over 260+ characters)
  4. Verify Windows XP environment
    Check the Windows version by running 'winver' or 'systeminfo | findstr /B /C:"OS Name" /C:"OS Version"'. The SEH overwrite exploit is specifically noted as effective on Windows XP.
    Affected if System is running Windows XP, making successful SEH-based code execution more feasible

A system is affected if ChaosPro version 2.0 is installed, a configuration file with an oversized path string exists, and the software processes that malformed configuration file.

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

Since ChaosPro 2.0 appears to be legacy/abandoned software with no current vendor support, organizations should discontinue use of this application. If continued use is required, strictly control configuration file sources and consider application isolation to limit exploitation impact.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA3.0 h
19.0 hours of engineering $3,380
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

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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-2019-25365 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
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