CVE-2020-5741: listed in the CISA KEV catalog

CVE-2020-5741 · CVSS 7.2 HIGH · EPSS 73% · KEV 2023-03-10

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

Is CVE-2020-5741 exploited?

• Listed in the CISA KEV catalog on 2023-03-10.
• Federal remediation due 2023-03-31.
• Past that date by 1252 days.
• EPSS puts exploitation in the next 30 days at 73%.
• Public exploit code: packaged in a public tool.

Which products and versions are affected?

• Plex Media Server (Windows) · Versions prior to 1.19.3

Is there a patch?

No patch identifier recorded here yet.

What PlainSec published about CVE-2020-5741

• Plex Patch Requires Both Sides to Move (2026-09-03)

Primary sources

• NVD record
• CISA KEV catalog
• Metasploit: exploit/windows/http/plex_unpickle_dict_rce

What this record does not say

• No patch identifier.

KEV and EPSS are re-checked daily. Record last updated 2026-09-03.