Exploited CVEs / Plex / CVE-2020-5741

CVE-2020-5741

Plex Media Server Remote Code Execution Vulnerability. Exploitation in the wild is confirmed by CISA, not predicted. Federal agencies were required to remediate by 2023-03-31 (that deadline has passed); treat that date as the outer bound for your own environment. Check the vendor security advisory for the fix.

Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.

Senserva AI read on CVE-2020-5741CISA required actionOfficial fix for CVE-2020-5741Admin questions

Risk summary

HighCISA KEV
7.2
CVSS v3 base
73%
EPSS exploit probability
High
Severity
2023-03-10
Added to KEV
2023-03-31 (past due)
CISA due date

Actively exploited Plex Media Server vulnerability, High severity, CVSS v3 7.2. Added to the CISA KEV catalog 2023-03-10.

Patch now
Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.
No vendor fix is mapped yet. This page refreshes daily and will name the patch the day one is published.
Do this now: Federal remediation deadline 2023-03-31; treat it as your outer bound. Patch now and verify deployment on every exposed device.

Updated March 10, 2023. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.

Senserva AI Opinion for CVE-2020-5741

Plex Media Server's Camera Upload feature can be abused by anyone holding the server administrator's Plex account to upload a malicious file the server then executes. CISA confirmed real-world exploitation in March 2023, and the 73 percent EPSS score is high for software mostly run by enthusiasts and small teams. Plex servers running inside corporate networks, often unofficially, extend this risk to the business.

Do this: Update any Plex Media Server to a fixed build and secure the Plex accounts that administer it with strong, unique credentials.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2020-5741

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for CVE-2020-5741

Published
2023-03-10
Last revised
2023-03-10
Changes tracked
1

Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.

Senserva Watchevery change we have recorded for this one
What changed, and when
0%25%50%75%100%CISA KEVCISA KEV on 2023-03-102026-07-17: EPSS 73%2026-07-19: EPSS 73%2026-10-20: EPSS 73%2026-10-28: EPSS 73%EPSS 73%2023-03-102026-10-28

Drawn by Senserva Vivid from the Senserva change record. Hover any point for its date and value.

  • 2023-03-10 added to the CISA KEV catalog by CISA
  • 2026-07-17 EPSS first scored at 72.8%
  • 2026-07-19 EPSS 72.8% to 72.9%
  • 2026-10-20 EPSS 72.9% to 72.8%
  • 2026-10-28 EPSS 72.8% to 72.9%

Recorded by Senserva on the dates shown, from CISA KEV and FIRST EPSS. This is what moved and when, which neither the vendor advisory nor NVD publishes.

CISA required action

Federal remediation due date: 2023-03-31 (past due).

Apply updates per vendor instructions.

Official fix for CVE-2020-5741

Check the vendor's security advisory channel for the patched Media Server versions and workarounds.

Common questions about CVE-2020-5741

Is CVE-2020-5741 actively exploited?

Yes. CVE-2020-5741 was added to the CISA Known Exploited Vulnerabilities (KEV) catalog on 2023-03-10, which means exploitation in the wild has been confirmed, not predicted. Its EPSS 30-day exploitation probability is 73%.

What is the CISA deadline and required action for CVE-2020-5741?

CISA set the federal remediation due date at 2023-03-31, which has passed; treat any unremediated system as overdue. The verbatim required action: Apply updates per vendor instructions.

What fixes CVE-2020-5741?

Check the vendor's security advisory for the patched Media Server versions and any workarounds. KEV listing makes this a fix-first item: patch it ahead of higher-CVSS issues nobody is exploiting.

Can I ask my own AI about CVE-2020-5741?

Yes. This page includes a free, ready-to-paste AI prompt containing CVE-2020-5741's key facts: severity, CVSS, EPSS, the KEV date, the CISA due date, and the required action. Copy it into Claude, ChatGPT, or Copilot; the data is refreshed daily (early morning US Central).

Scope and sources

More exploited Plex CVEs

All Plex exploited CVEs on one page: Plex vulnerabilities actively exploited.

Authoritative references

Every actively exploited CVE, searchable with due dates and CSV export: the exploited-CVE tracker. The newest additions: exploited this week.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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