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CVE-2020-5741

Plex Media Server Remote Code Execution

7.2 HIGHActively exploited (CISA KEV)Public exploitEPSS 72.9%
  1. Published8 May 2020
  2. Added to CISA KEV10 Mar 2023
  3. Remediation due31 Mar 2023
Actively exploited (CISA KEV)

Plex Media Server contains a remote code execution vulnerability that allows an attacker with access to the server administrator's Plex account to upload a malicious file via the Camera Upload feature and have the media server execute it.

Added to KEV: 10 Mar 2023Federal remediation due: 31 Mar 2023

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Plex Media Server< 1.19.3

Remediation

Fixed in
Plex Media Server≥ 1.19.3

References

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Frequently asked

Is CVE-2020-5741 being actively exploited?

Yes. CVE-2020-5741 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 10 Mar 2023.

How severe is CVE-2020-5741?

CVE-2020-5741 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 72.9% probability of exploitation.

Which products are affected by CVE-2020-5741?

Affected products include Plex Media Server.

How do I fix CVE-2020-5741?

Upgrade affected software to a fixed version, for example Plex Media Server 1.19.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2020-5741 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.