CVE-2022-4418
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 · uneditedLocal privilege escalation due to unrestricted loading of unsigned libraries. The following products are affected: Acronis Cyber Protect Home Office (Windows) before build 40208.
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 confidenceAcronis Cyber Protect Home Office for Windows before build 40208 allows local users to elevate privileges via DLL hijacking due to unrestricted loading of unsigned libraries. An attacker with local access could place a malicious DLL in a location where the application loads libraries from, achieving code execution with elevated privileges.
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 dataall versionsCVSS 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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Confirm Acronis Cyber Protect Home Office installationOpen Control Panel > Programs and Features, or run 'Get-ItemProperty HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\* | Select-Object DisplayName, DisplayVersion' in PowerShell to list installed softwareAffected if Acronis Cyber Protect Home Office appears in the installed programs list
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Identify installed build versionCheck the build number by looking in the registry at HKLM\SOFTWARE\Acronis\Global\About\Version or by locating the executable (typically in C:\Program Files\Acronis\Cyber Protect Home Office\) and viewing its propertiesAffected if The build number shown is below 40208 (for example, 40100, 40050, or any build prior to 40208)
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Verify vulnerable DLL loading behaviorUse Sysinternals Process Monitor to monitor the Acronis process for DLL loading events, or check that the application runs with elevated privileges while loading libraries from user-writable directoriesAffected if The application loads DLLs from locations writable by standard users (such as %TEMP% or the application working directory) without signature validation
If Acronis Cyber Protect Home Office is installed with a build number lower than 40208, the system is affected by this DLL hijacking vulnerability.
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.
dbcve · scopedUpgrade Acronis Cyber Protect Home Office to build 40208 or later, which includes proper signature validation for loaded libraries.
Acronis Cyber Protect Home Office build 40208 or later
- 1. Open Acronis Cyber Protect Home Office on the Windows system
- 2. Navigate to the Help or Settings section
- 3. Check the current build version (Help > About or similar)
- 4. If the build is before 40208, download the latest version from the official Acronis website or use the built-in update mechanism
- 5. Install the updated version (build 40208 or later)
- 6. Restart the system if prompted
- 7. Verify the installed version is 40208 or higher
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 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-2022-4418 — 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-2022-4418 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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