How severe is CVE-2020-5741?

CVE-2020-5741 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5741 being actively exploited?

Yes. CVE-2020-5741 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-03-10, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2020-5741?

CVE-2020-5741 affects Plex Media Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5741?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2020-5741 have an EU (EUVD) identifier?

Yes. CVE-2020-5741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-26900. It is also flagged as exploited in the EUVD (since 2023-03-10).

When was CVE-2020-5741 published?

CVE-2020-5741 was published on 2020-05-08 and last updated on 2026-06-17.

CVE-2020-5741

CVE-2020-5741 is a high-severity vulnerability in Plex Media Server with a CVSS 3.x base score of 7.2. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2023-03-10). The underlying weakness is classified as CWE-502.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 73% (99th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2023-03-10)
EU (EUVD) id: EUVD-2020-26900
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2023-03-10)
Weakness: CWE-502
Affected product: Plex Media Server
Published: 2020-05-08
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-5741?: Deserialization of Untrusted Data in Plex Media Server on Windows allows a remote, authenticated attacker to execute arbitrary Python code.
How severe is CVE-2020-5741?: CVE-2020-5741 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5741 being actively exploited?: Yes. CVE-2020-5741 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2023-03-10, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-5741?: CVE-2020-5741 affects Plex Media Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5741?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-5741 have an EU (EUVD) identifier?: Yes. CVE-2020-5741 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-26900. It is also flagged as exploited in the EUVD (since 2023-03-10).
When was CVE-2020-5741 published?: CVE-2020-5741 was published on 2020-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*

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