CVE DATABASE / CVE-2020-5741
CVE-2020-5741
Plex Media Server Remote Code Execution Vulnerability
CVSS 7.2 · HIGH
⚠ CISA KEV — ACTIVELY EXPLOITED
On the CISA KEV catalog
Confirmed exploited in the wild. Added 2023-03-10.
Federal remediation due 2023-03-31.
Required action: Apply updates per vendor instructions.
Summary
Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
CVSS 3.1 breakdown
| Base score | 7.2 (HIGH) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| Attack vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | HIGH |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity | HIGH |
| Availability | HIGH |
Weakness type (CWE)
Affected products
Plex media serverMicrosoft windows
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References
- http://packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows-Remote-Code-Execution.html
- https://www.tenable.com/security/research/tra-2020-32
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5741
Data: NIST NVD + CISA KEV. NVD last modified 2025-10-31. Always verify against the vendor advisory before acting.