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High 7.2Known exploited (CISA KEV)Published May 8, 2020
CVE-2020-5741Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
Updated under an hour ago ()
Does this affect you?
It affects plex media_server. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Mar 10, 2023; federal agencies had to remediate by Mar 31, 2023. Treat that date as your deadline.
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Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
- CVSS
- 7.2 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Added to CISA KEV Mar 10, 2023; federal remediation due Mar 31, 2023Apply updates per vendor instructions.
- EPSS (exploitation in the next 30 days)
- 72.94% (percentile 99)
- Assigned by
- tenable
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
plex media_server plex:media_server | before 1.19.3 | NVD |
References
- https://www.tenable.com/security/research/tra-2020-32x-refsource-misc, exploit, third-party-advisory
- http://packetstormsecurity.com/files/158470/Plex-Unpickle-Dict-Windows-Remote-Code-Execution.htmlx-refsource-misc, exploit, third-party-advisory, vdb-entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5741us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.