CVE-2020-5741

CRITICALNVD 7.29.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-03-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 7.2 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 73%CVSS: 7.2Exploit: cisa kev · ssvc active · Metasploit · epss top5pct · epss high · public exploitExposed: 0

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

Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.

CVSS v3
7.2
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
73%
EPSS %ILE
99%
KEV
⚠ Exploited

Published

May 8, 2020

Last Modified

October 31, 2025

Advisory Details (3)

Auto-updated Jun 11, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5741
generic🟡 PoC Available

Plex Media Server Authenticated Python Deserialization / RCE (Windows) - Research Advisory | Tenable®

https://www.tenable.com/security/research/tra-2020-32
generic

Packet Storm

http://packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows-Remote-Code-Execution.html

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 56× in last 7d / 224× 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 815 total refreshes for this CVE.

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

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/http/plex_unpickle_dict_rce✓ verified
    First seen May 7, 2020

    Plex Unpickle Dict Windows RCE

    Open source ↗

Related CVEs(same CWE)

Frequently asked(6)

What is CVE-2020-5741?
CVE-2020-5741 is a critical vulnerability published on May 8, 2020. Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
When was CVE-2020-5741 disclosed?
CVE-2020-5741 was first published in the National Vulnerability Database on May 8, 2020, with the most recent update on October 31, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-5741 actively exploited?
Yes. CISA added CVE-2020-5741 to the Known Exploited Vulnerabilities catalog on March 10, 2023, affecting Plex Media Server. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2020-5741?
CVE-2020-5741 has a CVSS v3 base score of 7.2 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2020-5741?
CVE-2020-5741 affects Plex Media Server. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2020-5741?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-5741, 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

Explore the affected products and dependency analysis for CVE-2020-5741

Explore →

Is Your Infrastructure Affected by CVE-2020-5741?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs