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Home PlexCVE-2021-33959

High

7.5CVSS

CVE-2021-33959

Vendor:Plex

Published: 18 Jan 2023

Updated 1y ago

Generated remediation guidance and an executive summary. No account required.

Description

Plex media server 1.21 and before is vulnerable to ddos reflection attack via plex service.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-346 CWE-346

Metadata

Primary Vendor: PLEX
Published: 1/18/2023
Last Modified: 4/4/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

plex : media_server

Remediation Guidance

Executive Summary

View on NIST NVD

Fix CVE-2021-33959 - HIGH plex media server | CVEDatabase.com

Related reading

Use CWE-346, Plex vendor hub and Media Server product page to widen CVE-2021-33959 into its surrounding weakness, vendor, and product context.

Compare it with CVE-2020-5741, CVE-2018-13415 and CVE-2020-5742 for nearby disclosures in the same product family.