CVE-2024-55543
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 DLL hijacking vulnerability. The following products are affected: Acronis Cyber Protect 16 (Windows) before build 39169.
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 confidenceAcronis Cyber Protect 16 for Windows contains a DLL hijacking vulnerability that allows a local attacker to execute arbitrary code with elevated privileges by placing a malicious DLL in a location where the application loads DLLs without proper path validation.
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<= 15= 16CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 is installedCheck Windows Registry under HKLM\SOFTWARE\Acronis for Cyber Protect entry, or look for the product in Add/Remove Programs, or verify the installation directory exists (commonly C:\Program Files\Acronis\Cyber Protect)Affected if If Acronis Cyber Protect is not present, the system is not affected by this vulnerability
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Identify installed version and build numberCheck the product version in Windows Registry at HKLM\SOFTWARE\Acronis\Cyber Protect\Setup, or right-click on the main executable (typically acronis_protect.exe in the installation folder) and view Properties > Details for the File VersionAffected if If the version is 16 with build number below 39169, or version 15 or earlier, the installation falls within the vulnerable range
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Verify the vulnerable version is actively loadedConfirm the installed version matches the running service by checking the Acronis service in Services.msc or examining the process details of active Acronis processesAffected if If the running service matches a vulnerable version, the DLL hijacking vulnerability is present in the active environment
The environment is affected if Acronis Cyber Protect version 16 with build lower than 39169, or any version 15 or earlier, is installed and running.
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 · scopedUpdate Acronis Cyber Protect 16 to build 39169 or later to receive the vendor patch. Prior to patching, restrict write access to application directories and monitor for unauthorized DLL placement.
Acronis Cyber Protect 16 build 39169 or later
- Check current Acronis Cyber Protect 16 installation version via Programs and Features or the Cyber Protect console
- Download Acronis Cyber Protect 16 build 39169 or later from the official Acronis download center or update server
- Run the installer with administrative privileges to apply the update
- Restart the system if prompted by the installer
- Verify the installed version is build 39169 or higher to confirm the patch was applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-55543 — 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-2024-55543 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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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.
- 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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