CVE-2022-40298
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 · uneditedCrestron AirMedia for Windows before 5.5.1.84 has insecure inherited permissions, which leads to a privilege escalation vulnerability found in the AirMedia Windows Application, version 4.3.1.39. A low privileged user can initiate a repair of the system and gain a SYSTEM level shell.
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 confidenceCrestron AirMedia Windows Application before version 5.5.1.84 contains insecure inherited permissions that allow a low-privileged user to trigger a system repair function. This repair mechanism executes with SYSTEM-level privileges, enabling the attacker to obtain a full SYSTEM shell and complete privilege escalation.
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= 4.3.1.39CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/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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Locate AirMedia Windows Application installationCheck the Windows Registry under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ or look in C:\Program Files\Crestron\AirMedia for the AMIS.exe or similar AirMedia binariesAffected if The application is installed on the system
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Determine installed AirMedia versionRight-click the AirMedia executable (such as AMIS.exe or AirMedia.exe) in Program Files, select Properties, and check the File Version field, or query the registry key for the DisplayVersion valueAffected if The installed version is exactly 4.3.1.39
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Identify the repair mechanism executableSearch the AirMedia installation directory for files related to repair, update, or fix functionality, such as any executable containing 'repair', 'fix', 'update', or 'service' in the filenameAffected if A repair executable exists in the AirMedia installation folder with weak permissions
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Verify low-privileged user access to repair functionUse icacls or accesschk to examine the permissions on the identified repair executable or associated Windows service - attempt to run the repair function as a standard user accountAffected if A standard (non-admin) user account can execute the repair mechanism
A system is affected only if the AirMedia Windows Application version is exactly 4.3.1.39 AND a low-privileged user can trigger the repair mechanism that escalates to SYSTEM privileges.
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 AirMedia Windows Application to version 5.5.1.84 or later to remediate the insecure permission vulnerability.
5.5.1.84 or later
- Identify the current version of Crestron AirMedia for Windows installed on the system
- Download Crestron AirMedia for Windows version 5.5.1.84 or later from the official Crestron website (www.crestron.com)
- Follow standard upgrade procedures to apply the update to the AirMedia software
- After upgrade, verify the installed version is 5.5.1.84 or later to confirm remediation
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
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2022-40298 — 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-2022-40298 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
- No spam, self-promotion, credentials, or personal data