CVE-2020-5741

CVE Enrichment

CVSS: 7.2 HIGH
EPSS: 72.75%
EPSS Percentile: 99.45%
CISA KEV: YES — Known Exploited Vulnerability

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 08-May-2020 20:15
Last Modified: 17-Jun-2026 10:22
EPSS Date: 2026-10-21
CWE: CWE-502

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:H /
                            UI:N /
                            S:U /
                            C:H /
                            I:H /
                            A:H

CISA KEV Details

Date Added: 2023-03-10
Remediation Due: 2023-03-31
Known Ransomware Campaign Use: Unknown
Required Action: Apply updates per vendor instructions.
Notes: https://forums.plex.tv/t/security-regarding-cve-2020-5741/586819; https://nvd.nist.gov/vuln/detail/CVE-2020-5741

Affected Products / Versions

plex / media_server
Version / affected range: * · before (exclusive) 1.19.3
cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*

References

Last enrichment sync: 22-Oct-2026 01:13
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (3)

#Plex Over 36,000 Internet-Exposed Plex Servers Remain Unpatched Against Security Flaws
The alert follows past Plex issues, including CVE-2025-34158 and CVE-2020-5741, which were tied to account exposure and the LastPass breach. Plex Urges Users to Update Media Server and Desktop After Fixing Security Flaws
Plex previously warned about CVE-2025-34158 and an actively exploited Plex RCE flaw, CVE-2020-5741. Plex urges users to patch multiple security flaws in Media Server and Desktop

CVE (1)

MITRE ATT&CK (2)

Vendors (1)

Products (2)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.