OS Command InjectionWeakness · CWE-78

CVE-2025-55037

CRITICAL · 9.8 CVSS v3.0 Published 2025-09-05
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
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
Improper neutralization of special elements used in an OS command ('OS Command Injection') issue exists in TkEasyGUI versions prior to v1.0.22. If this vulnerability is exploited, an arbitrary OS command may be executed by a remote unauthenticated attacker if the settings are configured to construct messages from external sources.

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

TkEasyGUI versions before v1.0.22 contain an OS command injection vulnerability. When the application settings are configured to construct messages from external (untrusted) sources without proper sanitization, an attacker can inject arbitrary OS commands that will be executed on the target system. This is a critical pre-authentication remote code execution vector.

MitigationUpgrade TkEasyGUI to version 1.0.22 or later. Additionally, audit code paths where external input is used to construct messages and implement proper input validation/sanitization to prevent command injection regardless of library version.

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:3.0/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. Check installed TkEasyGUI version
    Run 'pip show tkeasygui' or 'pip list | grep -i tkeasygui' to see the installed version
    Affected if Version is below 1.0.22 or version cannot be determined (package may be outdated)
  2. Identify if application processes external input into messages
    Search source code for patterns where user-supplied data flows into message construction functions - look for string formatting, f-strings, or concatenation involving external input variables
    Affected if Application code uses external (untrusted) input to construct messages without sanitization
  3. Check for command execution patterns in message handling
    Search codebase for os.system, subprocess calls, or shell=True usage that incorporate message or display-related variables containing external data
    Affected if Code executes system commands using message content derived from external input
  4. Audit application settings for external data sources
    Review configuration files and application settings to identify if untrusted sources (HTTP parameters, file input, network data) feed directly into GUI message rendering
    Affected if Settings allow untrusted/external data to drive message content without validation

A user is affected if TkEasyGUI version is below 1.0.22 AND the application uses external input to construct messages displayed by the GUI.

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

Upgrade TkEasyGUI to version 1.0.22 or later. Additionally, audit code paths where external input is used to construct messages and implement proper input validation/sanitization to prevent command injection regardless of library version.

Recommended fix Moderate confidence

TkEasyGUI v1.0.22

  1. Check current TkEasyGUI version using: pip show tkeasygui
  2. Upgrade to version 1.0.22 or later using: pip install --upgrade tkeasygui
  3. Verify the upgrade was successful by running: pip show tkeasygui and confirming the version is 1.0.22 or higher

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

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA3.0 h
21.0 hours of engineering $3,680
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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-2025-55037 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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