Plex Media Server <1.21 DDoS Reflection via Plex Service
CVE-2021-33959 Published on January 18, 2023

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

NVD

Vulnerability Analysis

CVE-2021-33959 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

Origin Validation Error

The software does not properly verify that the source of data or communication is valid.


Products Associated with CVE-2021-33959

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Plex Media Server
 

Exploit Probability

EPSS
8.86%
Percentile
92.51%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.