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MegaservisignadapterApplication · Changingtec

CVE-2022-39060

CRITICAL · 9.8 CVSS v3.1 Published 2023-01-31
Fix available
A fix is available. Upgrade to 1.0.22.1004 or later.
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
ChangingTech MegaServiSignAdapter component has a vulnerability of improper input validation. An unauthenticated remote attacker can exploit this vulnerability to access and modify HKEY_CURRENT_USER subkey (ex: AutoRUN) in Registry where malicious scripts can be executed to take control of the system or to terminate the service.

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

ChangingTech MegaServiSignAdapter contains an improper input validation flaw allowing unauthenticated remote attackers to modify HKEY_CURRENT_USER registry subkeys such as AutoRUN. This enables arbitrary script execution via autostart persistence or service termination for system compromise.

MitigationApply available vendor patches for MegaServiSignAdapter; if no patch exists, restrict network access to the component and monitor registry modifications to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run keys.

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
MegaservisignadapterApplication
Affected:< 1.0.22.1004

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. Verify MegaServiSignAdapter installation
    Check for the presence of MegaServiSignAdapter on the system by searching installed programs or the program directory (commonly in C:\Program Files or C:\Program Files (x86)\Changingtec or similar).
    Affected if MegaServiSignAdapter is found installed on the system.
  2. Determine installed version
    Locate the version information for MegaServiSignAdapter - typically found in the application executable properties, an about dialog, or a version file within the application directory. Compare the version number to the affected range.
    Affected if The installed version is less than 1.0.22.1004.
  3. Check network exposure
    Determine if the MegaServiSignAdapter component is listening on network ports or accessible remotely. This may require checking running services, listening ports, or firewall rules.
    Affected if The component is network-accessible from untrusted locations.
  4. Inspect registry for unauthorized Run entries
    Examine HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run (and related RunOnce keys) for unexpected or suspicious entries that may have been added by the vulnerable component.
    Affected if Unknown or suspicious entries appear in the Run key that correspond to MegaServiSignAdapter behavior or scripts.

The environment is affected if MegaServiSignAdapter is installed with a version below 1.0.22.1004 and is exposed to network access, allowing remote attackers to modify registry autostart entries.

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
Upgrade available Upgrade to 1.0.22.1004 or later
Fixed in 1.0.22.1004
Interim mitigation

Apply available vendor patches for MegaServiSignAdapter; if no patch exists, restrict network access to the component and monitor registry modifications to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run keys.

Recommended fix Moderate confidence

1.0.22.1004 or later

  1. 1. Identify all systems running MegaServiSignAdapter versions prior to 1.0.22.1004
  2. 2. Backup the current installation and any associated configuration files
  3. 3. Obtain the patched version (1.0.22.1004 or later) from the vendor's official distribution channel
  4. 4. Uninstall the vulnerable MegaServiSignAdapter version
  5. 5. Install the patched version 1.0.22.1004 or later
  6. 6. Verify the installation by checking the installed version number
  7. 7. Test that the application functions correctly after the upgrade
  8. 8. Verify that registry keys are no longer accessible via unauthenticated remote calls

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

Fix this in Megaservisignadapter Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

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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-2022-39060 in production — separate from our analysis above.

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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
  • No spam, self-promotion, credentials, or personal data