CVE-2024-53326

HIGHNVD 7.37.3—Weaponized

7.3

LINQPad before 5.52.01 Pro edition is vulnerable to Unsafe Deserialization in LINQPad.AutoRefManager::PopulateFromCache(), leading to code execution.

CVSS v3: 7.3
EG Score: 7.3(high)
EPSS: 87.7%
KEV: Not listed

Published

May 8, 2026

Last Modified

May 8, 2026

Advisory Details (2)

Auto-updated May 8, 2026

🔬 Proof of concept available. No patch confirmed yet.

generic🟡 PoC Available

TrustedSec | Discovering a Deserialization Vulnerability in LINQPad

https://trustedsec.com/blog/discovering-a-deserialization-vulnerability-in-linqpad

generic

LINQPad - The .NET Programmer's Playground

https://www.linqpad.net/

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-502Deserialization of Untrusted Data

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Metasploitexploit/windows/persistence/linqpad_deserialization✓ verified
First seen Dec 3, 2024
LINQPad Deserialization
Open source ↗

Frequently asked(5)

What is CVE-2024-53326?

CVE-2024-53326 is a high vulnerability published on May 8, 2026. LINQPad before 5.52.01 Pro edition is vulnerable to Unsafe Deserialization in LINQPad.AutoRefManager::PopulateFromCache(), leading to code execution.

When was CVE-2024-53326 disclosed?

CVE-2024-53326 was first published in the National Vulnerability Database on May 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2024-53326 actively exploited?

CVE-2024-53326 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 87.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2024-53326?

CVE-2024-53326 has a CVSS v3 base score of 7.3 (NVD).

How do I remediate CVE-2024-53326?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-53326, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-53326

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Is Your Infrastructure Affected by CVE-2024-53326?

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CVE-2024-53326

📅 Published

🔄 Last Modified

📋 Advisory Details (2)