Classic Buffer OverflowWeakness · CWE-120

CVE-2020-37043

CRITICAL · 9.8 CVSS v3.1 Published 2026-01-30
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
10-Strike Bandwidth Monitor 3.9 contains a buffer overflow vulnerability that allows attackers to bypass SafeSEH, ASLR, and DEP protections through carefully crafted input. Attackers can exploit the vulnerability by sending a malicious payload to the application's registration key input, enabling remote code execution and launching arbitrary system commands.

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

A buffer overflow vulnerability in 10-Strike Bandwidth Monitor 3.9's registration key input field allows attackers to bypass SafeSEH, ASLR, and DEP security protections through specially crafted input. The vulnerability enables remote code execution and arbitrary system command execution on the affected machine.

MitigationContact the vendor (10-Strike Software) for an immediate patch; until available, isolate the application from untrusted networks and restrict access to the registration functionality.

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. Identify installed version of 10-Strike Bandwidth Monitor
    Open Windows Control Panel, go to Programs and Features, locate 10-Strike Bandwidth Monitor in the list, and note the version column. Alternatively, use PowerShell: Get-ItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' | Where-Object {$_.DisplayName -like '*Bandwidth Monitor*'} | Select-Object DisplayName, DisplayVersion
    Affected if The displayed version is 3.9 exactly
  2. Verify application executable file version
    Navigate to the installation directory (commonly C:\Program Files\10-Strike Bandwidth Monitor\), right-click BandwidthMonitor.exe, select Properties, and view the File Version in the Details tab
    Affected if The file version reads 3.9 or matches the vulnerable release
  3. Confirm registration feature is present
    Launch the application, access the Help menu or main window, and locate the registration or license key input option
    Affected if The registration key input field is present and accepts text input in the application interface

The environment is affected if 10-Strike Bandwidth Monitor version 3.9 is installed and the registration key input feature is accessible in the application.

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

Contact the vendor (10-Strike Software) for an immediate patch; until available, isolate the application from untrusted networks and restrict access to the registration functionality.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
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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-2020-37043 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
  • No weaponised exploit code, or anything meant to cause harm
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