CVE-2023-45894
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 · uneditedThe Remote Application Server in Parallels RAS before 19.2.23975 does not segment virtualized applications from the server, which allows a remote attacker to achieve remote code execution via standard kiosk breakout techniques.
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 confidenceThe Remote Application Server in Parallels RAS prior to version 19.2.23975 lacks proper isolation between virtualized applications and the underlying server, allowing attackers to escape kiosk-mode restrictions and execute arbitrary code on the host system.
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< 19.2.23975CVSS 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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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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Verify Parallels RAS installationCheck installed programs or services for Parallels Remote Application Server or Parallels RASAffected if Parallels RAS is not present on the system, the vulnerability does not apply
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Determine installed versionLocate the Parallels RAS version through the product Help > About menu, or check the version reported by the Parallels RAS console or serviceAffected if The installed version is less than 19.2.23975 and Parallels RAS is present
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Confirm RAS Remote Application Server feature is in useCheck if the Remote Application Server role or kiosk-mode published applications are configured and active on the hostAffected if Remote Application Server functionality is enabled and the version is below 19.2.23975
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Assess network exposureDetermine if the RAS server is accessible from network paths that could permit an attacker to reach the kiosk-mode interfaceAffected if The RAS server is network-accessible and the version is below 19.2.23975
A system is affected if Parallels RAS version is below 19.2.23975 and the Remote Application Server or kiosk-mode feature is enabled and accessible.
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 · scoped19.2.23975
Upgrade Parallels RAS to version 19.2.23975 or later to obtain the segmentation fix; verify kiosk breakout is no longer possible post-update.
Parallels Remote Application Server 19.2.23975 or later
- Identify the current Parallels Remote Application Server version installed in your environment
- Create a full backup of the RAS configuration and any associated virtualized application data
- Download Parallels RAS version 19.2.23975 or later from the official Parallels website
- Follow the standard Parallels upgrade procedure: stop RAS services, run the installer, and complete the upgrade
- After upgrade, verify the version number matches 19.2.23975 or higher
- Test that virtualized applications run in properly segmented/isolated mode
- Confirm that standard kiosk breakout techniques are no longer effective
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation3.0 h
- Testing8.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-45894 — 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-2023-45894 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