CVE-2024-53326
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 · uneditedLINQPad before 5.52.01 Pro edition is vulnerable to Unsafe Deserialization in LINQPad.AutoRefManager::PopulateFromCache(), leading to code execution.
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 confidenceLINQPad Pro edition before version 5.52.01 contains an unsafe deserialization vulnerability in the LINQPad.AutoRefManager::PopulateFromCache() method. This allows attackers to execute arbitrary code by providing malicious serialized data that gets deserialized without proper validation.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/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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Verify LINQPad Pro versionOpen LINQPad Pro and navigate to Help > About LINQPad, or right-click the LINQPad executable in Program Files and select Properties to view the version numberAffected if The installed version is earlier than 5.52.01 (any version below 5.52.01 is affected)
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Identify AutoRefManager cache locationCheck the user AppData folder for LINQPad cache files - the AutoRefManager feature stores serialized cache data, typically under %APPDATA%\LINQPadAffected if Cache files from a vulnerable version exist and may contain deserialized data from the PopulateFromCache() method
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Review recent query filesExamine any recently opened LINQPad query files (.linq) from untrusted sources, as the vulnerability can be triggered when loading malicious serialized contentAffected if Untrusted or external .linq query files have been opened on a vulnerable version
You are affected if LINQPad Pro version is below 5.52.01 and the AutoRefManager feature has processed any external or untrusted serialized data
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 to LINQPad Pro version 5.52.01 or later which contains the fix for this vulnerability. If upgrading is not immediately possible, restrict network access to systems running LINQPad and avoid opening untrusted LINQPad query files.
LINQPad Pro 5.52.01 or later
- Navigate to the official LINQPad download page at www.linqpad.net
- Download LINQPad Pro edition version 5.52.01 or later
- Close any running instances of LINQPad
- Run the installer for the new version
- Follow the installation wizard prompts to complete the upgrade
- Restart LINQPad after installation to ensure the patched version is running
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation1.0 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 $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-53326 — 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-2024-53326 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