CVE-2023-20853
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 · uneditedaEnrich Technology a+HRD has a vulnerability of Deserialization of Untrusted Data within its MSMQ asynchronized message process. An unauthenticated remote attacker can exploit this vulnerability to execute arbitrary system commands to perform arbitrary system operation or disrupt service.
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 confidencea+HRD by aEnrich Technology contains a deserialization vulnerability in its MSMQ asynchronous message processing component. An unauthenticated remote attacker can send specially crafted malicious messages that, when deserialized by the vulnerable application, allow execution of arbitrary system commands with the privileges of the compromised service.
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= 6.8.1039v844CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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 a+HRD installationLook for aEnrich a+HRD software on the system - check Program Files directories, Windows Services list for aEnrich services, or the application's installation folder. The application is typically installed in a path containing 'aEnrich' or 'ahrd'.Affected if a+HRD is installed on the system
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Identify installed a+HRD versionLocate version information in the application's installation directory, help menu, about dialog, or Windows registry under the aEnrich installation key. Compare the version number to 6.8.1039v844 - versions equal to or lower than this are affected.Affected if Installed version is 6.8.1039v844 or any earlier version
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Verify MSMQ component is in useCheck a+HRD configuration files (typically in the config or settings folder within the installation directory) for MSMQ-related settings, message queue connection strings, or async message processing configurations. Also check Windows Services for MSMQ (Message Queuing) to confirm it is installed and running.Affected if MSMQ asynchronous message processing is configured or enabled in a+HRD settings
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Assess network exposure of MSMQ endpointCheck Windows Firewall rules and network configuration to determine if MSMQ listening ports (typically TCP 1801 for remote, plus 135, 2101, 2103, 2105 for RPC) are open to untrusted networks or the internet.Affected if MSMQ ports are accessible from untrusted network segments
The environment is affected if a+HRD version 6.8.1039v844 or earlier is installed AND MSMQ asynchronous message processing is enabled, regardless of network exposure.
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 dataApply vendor patch if available; otherwise implement strict input validation/whitelisting on MSMQ message deserialization, restrict network access to MSMQ endpoints, and consider temporarily disabling the asynchronous message processing feature if non-essential until remediated.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-20853 — 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-2023-20853 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
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