CVE-2023-52277
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 · uneditedRoyal RoyalTSX before 6.0.2.1 allows attackers to cause a denial of service (Heap Memory Corruption and application crash) or possibly have unspecified other impact via a long hostname in an RTSZ file, if the victim clicks on Test Connection. This occurs during SecureGatewayHost object processing in RAPortCheck.createNWConnection.
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 confidenceRoyalTSX before 6.0.2.1 contains a heap memory corruption vulnerability in the SecureGatewayHost object processing within RAPortCheck.createNWConnection. When a user opens a specially crafted RTSZ file containing an excessively long hostname and clicks Test Connection, the application fails to properly validate the hostname length before memory operations, leading to heap corruption and application crash with potential for unspecified further impact.
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< 6.0.2.1CVSS 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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Identify RoyalTSX versionOpen RoyalTSX, go to Help > About RoyalTSX to view the installed version numberAffected if The version displayed is earlier than 6.0.2.1 (for example, 6.0.0, 5.x, or earlier)
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Verify SecureGatewayHost feature presenceCheck if the Secure Gateway functionality is available in the installation - this feature is found under Connections or Dashboard in the applicationAffected if Secure Gateway feature exists in the application and the version is vulnerable (< 6.0.2.1)
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Inspect for RTSZ file handling capabilityRoyalTSX uses .rtsz files for connections - verify the application can import or open these files (File > Open or drag-and-drop)Affected if RTSZ file import is enabled and RoyalTSX version is < 6.0.2.1, making the heap corruption trigger accessible
A user is affected if RoyalTSX version is installed and is lower than 6.0.2.1, combined with the ability to open RTSZ files and use the Test Connection feature on Secure Gateway hosts.
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 · scoped6.0.2.1
Update RoyalTSX to version 6.0.2.1 or later to obtain the vendor patch. Avoid opening RTSZ files from untrusted sources and refrain from using Test Connection on files of unknown origin.
6.0.2.1
- 1. Download RoyalTSX version 6.0.2.1 or later from the official vendor website
- 2. Verify the download integrity using checksums if provided
- 3. Close any running RoyalTSX instances
- 4. Install the updated version of RoyalTSX
- 5. Avoid opening untrusted RTSZ files or clicking Test Connection on files from untrusted sources until the update is applied
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 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-2023-52277 — 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-2023-52277 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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