CVE-2024-53326

HIGHNVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-05-08. NVD baseline CVSS 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
7.3EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, ssvc poc, public exploit)
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.3Exploit: Metasploit · ssvc poc · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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(medium)
EG Risk
59(Track*)
EG Risk 59/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity73% × 45%
Exploitation65% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
41%
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.

Data Freshness Timeline

(refreshed 7× in last 7d / 32× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 230 total refreshes for this CVE.

  1. 2026-09-15 03:08 UTCEPSS rescore
  2. 2026-09-13 16:45 UTCEPSS rescore
  3. 2026-09-12 14:59 UTCEPSS rescore
  4. 2026-09-11 14:51 UTCEPSS rescore
  5. 2026-09-11 09:35 UTCEPSS rescore
  6. 2026-09-10 09:33 UTCEPSS rescore
  7. 2026-09-08 21:59 UTCEPSS rescore
  8. 2026-09-07 16:00 UTCEPSS rescore
  9. 2026-09-06 13:46 UTCEPSS rescore
  10. 2026-09-04 13:59 UTCEPSS rescore
  11. 2026-09-04 05:05 UTCEPSS rescore
  12. 2026-09-02 14:10 UTCEPSS rescore
  13. 2026-09-01 13:52 UTCEPSS rescore
  14. 2026-08-30 19:16 UTCEPSS rescore
  15. 2026-08-30 19:16 UTCEPSS rescore
  16. 2026-08-30 01:21 UTCEPSS rescore
  17. 2026-08-28 21:39 UTCEPSS rescore
  18. 2026-08-27 14:24 UTCEPSS rescore
  19. 2026-08-26 14:44 UTCEPSS rescore
  20. 2026-08-25 13:47 UTCEPSS rescore
  21. 2026-08-24 14:15 UTCEPSS rescore
  22. 2026-08-23 19:27 UTCEG score recompute
  23. 2026-08-23 19:27 UTCGHSA enrichment
  24. 2026-08-23 00:18 UTCEPSS rescore
  25. 2026-08-21 23:47 UTCEPSS rescore
Show 75 more
  1. 2026-08-20 22:54 UTCEPSS rescore
  2. 2026-08-19 17:02 UTCEPSS rescore
  3. 2026-08-18 13:47 UTCEPSS rescore
  4. 2026-08-17 13:45 UTCEPSS rescore
  5. 2026-08-17 11:58 UTCEG score recompute
  6. 2026-08-17 11:58 UTCGHSA enrichment
  7. 2026-08-16 14:55 UTCEPSS rescore
  8. 2026-08-16 04:40 UTCEG score recompute
  9. 2026-08-16 04:40 UTCGHSA enrichment
  10. 2026-08-16 02:13 UTCEPSS rescore
  11. 2026-08-15 01:54 UTCEG score recompute
  12. 2026-08-15 01:54 UTCGHSA enrichment
  13. 2026-08-15 01:29 UTCEPSS rescore
  14. 2026-08-14 14:34 UTCGHSA enrichment
  15. 2026-08-14 03:15 UTCEG score recompute
  16. 2026-08-14 03:15 UTCGHSA enrichment
  17. 2026-08-13 21:59 UTCEPSS rescore
  18. 2026-08-13 04:10 UTCGHSA enrichment
  19. 2026-08-12 16:50 UTCEG score recompute
  20. 2026-08-12 16:50 UTCGHSA enrichment
  21. 2026-08-12 13:49 UTCEPSS rescore
  22. 2026-08-11 15:53 UTCEG score recompute
  23. 2026-08-11 15:53 UTCGHSA enrichment
  24. 2026-08-11 13:41 UTCEPSS rescore
  25. 2026-08-11 01:21 UTCEG score recompute
  26. 2026-08-11 01:21 UTCGHSA enrichment
  27. 2026-08-10 23:58 UTCEPSS rescore
  28. 2026-08-10 12:44 UTCGHSA enrichment
  29. 2026-08-10 01:07 UTCGHSA enrichment
  30. 2026-08-09 13:47 UTCEG score recompute
  31. 2026-08-09 13:47 UTCGHSA enrichment
  32. 2026-08-09 13:45 UTCEPSS rescore
  33. 2026-08-09 02:27 UTCEG score recompute
  34. 2026-08-09 02:27 UTCGHSA enrichment
  35. 2026-08-08 16:35 UTCEPSS rescore
  36. 2026-08-08 07:30 UTCGHSA enrichment
  37. 2026-08-07 20:10 UTCEG score recompute
  38. 2026-08-07 20:10 UTCGHSA enrichment
  39. 2026-08-07 16:26 UTCEPSS rescore
  40. 2026-08-07 08:50 UTCGHSA enrichment
  41. 2026-08-06 20:51 UTCEG score recompute
  42. 2026-08-06 20:51 UTCGHSA enrichment
  43. 2026-08-06 13:45 UTCEPSS rescore
  44. 2026-08-06 09:31 UTCGHSA enrichment
  45. 2026-08-05 22:11 UTCEG score recompute
  46. 2026-08-05 22:11 UTCGHSA enrichment
  47. 2026-08-05 19:16 UTCEPSS rescore
  48. 2026-08-04 15:08 UTCEPSS rescore
  49. 2026-08-03 19:34 UTCEG score recompute
  50. 2026-08-03 19:34 UTCGHSA enrichment
  51. 2026-08-03 10:35 UTCEPSS rescore
  52. 2026-08-03 02:12 UTCGHSA enrichment
  53. 2026-08-02 14:52 UTCGHSA enrichment
  54. 2026-08-02 03:32 UTCEG score recompute
  55. 2026-08-02 03:32 UTCGHSA enrichment
  56. 2026-08-02 02:25 UTCEPSS rescore
  57. 2026-08-02 02:25 UTCEPSS rescore
  58. 2026-08-01 04:14 UTCEPSS rescore
  59. 2026-07-30 16:26 UTCEPSS rescore
  60. 2026-07-30 16:26 UTCEPSS rescore
  61. 2026-07-30 01:29 UTCEPSS rescore
  62. 2026-07-28 15:35 UTCEPSS rescore
  63. 2026-07-26 14:53 UTCEPSS rescore
  64. 2026-07-25 14:17 UTCEPSS rescore
  65. 2026-07-25 14:17 UTCEPSS rescore
  66. 2026-07-24 14:16 UTCEPSS rescore
  67. 2026-07-23 14:17 UTCEPSS rescore
  68. 2026-07-23 14:17 UTCEPSS rescore
  69. 2026-07-23 02:44 UTCEG score recompute
  70. 2026-07-22 14:07 UTCEPSS rescore
  71. 2026-07-21 15:23 UTCEPSS rescore
  72. 2026-07-20 17:07 UTCEPSS rescore
  73. 2026-07-19 14:30 UTCEPSS rescore
  74. 2026-07-19 14:30 UTCEPSS rescore
  75. 2026-07-19 02:28 UTCEPSS rescore

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 ↗

Related CVEs(same CWE)

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 0% probability of exploitation in the next 30 days, which ranks it in the top 59.4% of all scored CVEs.
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

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