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CVE-2020-5741
Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
High7.2Known exploitedEPSS 72.9%
- Published
- Updated
- Reserved
- Assigned by
- tenable
Description
Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Plex Media Server Remote Code Execution Vulnerability.
- Added
- 10 Mar 2023
- Fix due (US federal)
- 31 Mar 2023
- Used by ransomware
- Not known
Apply updates per vendor instructions.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 72.9% · top 0.5% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
- Authenticated Remote Python Deserialization
- CWE-502 Deserialization of Untrusted Data (opens in a new tab)All about CWE-502 and its CVEs
Affected products
Plex Media Server (Windows)
- affected Versions prior to 1.19.3
References (3)
- https://www.tenable.com/security/research/tra-2020-32 (opens in a new tab)x_refsource_MISCx_transferred
- http://packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows-Remote-Code-Execution.html (opens in a new tab)x_refsource_MISCx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5741 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-5741)Record last updated .