CVE-2021-44901
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 · uneditedMicro-Star International (MSI) Dragon Center <= 2.0.116.0 is vulnerable to multiple Privilege Escalation (LPE/EoP) vulnerabilities in the atidgllk.sys, atillk64.sys, MODAPI.sys, NTIOLib.sys, NTIOLib_X64.sys, WinRing0.sys, WinRing0x64.sys drivers components. All the vulnerabilities are triggered by sending specific IOCTL requests.
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 confidenceMSI Dragon Center versions 2.0.116.0 and earlier contain multiple kernel-mode driver vulnerabilities (atidgllk.sys, atillk64.sys, MODAPI.sys, NTIOLib.sys, NTIOLib_X64.sys, WinRing0.sys, WinRing0x64.sys) that allow local privilege escalation via specially crafted IOCTL requests. These drivers expose privileged operations to user-mode processes without proper authorization checks.
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<= 2.0.116.0CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Check if MSI Dragon Center is installedOpen Programs and Features (appwiz.cpl) or check registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall for an entry named 'MSI Dragon Center' or similar. Also check for the executable in typical program directories.Affected if MSI Dragon Center is present on the system and version is 2.0.116.0 or earlier, or version cannot be determined (older installs may not list version).
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Verify the installed MSI Dragon Center versionRight-click the MSI Dragon Center application in Programs and Features, select Properties, and check the Version field. Alternatively, locate the main executable (commonly named Dragon Center.exe or similar in the installation folder) and view its File Properties for version information.Affected if The displayed version is 2.0.116.0 or any version lower than that, or no version information is available (older installs may lack version metadata).
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Search for vulnerable kernel drivers on diskUse File Explorer or command line (dir /s C:\*.sys) to search for these specific driver files: atidgllk.sys, atillk64.sys, MODAPI.sys, NTIOLib.sys, NTIOLib_X64.sys, WinRing0.sys, WinRing0x64.sys. Check common locations such as C:\Program Files\MSI, C:\Windows\System32\drivers, or the application installation directory.Affected if Any of these seven driver files are found on the system.
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Check if vulnerable drivers are currently loadedOpen Command Prompt as Administrator and run 'driverquery /v' or 'sc query' to list loaded drivers. Search the output for any of the vulnerable driver names: atidgllk, atillk64, MODAPI, NTIOLib, WinRing0.Affected if Any of these drivers appear in the loaded driver list with a Running state.
A user is affected if MSI Dragon Center version 2.0.116.0 or earlier is installed, or if any of the seven vulnerable kernel drivers (atidgllk.sys, atillk64.sys, MODAPI.sys, NTIOLib.sys, NTIOLib_X64.sys, WinRing0.sys, WinRing0x64.sys) are present on the system.
Generated from the published advisory. Verify against your own configuration.
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 dataUpdate MSI Dragon Center to a version newer than 2.0.116.0, or uninstall the application if updates are unavailable. Remove or block loading of the vulnerable kernel drivers.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-44901 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-44901 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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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