High severity · published Jan 18, 2023
CVE-2021-33959
Plex media server 1.21 and before is vulnerable to ddos reflection attack via plex service
7.5
CVSS
15%
EPSS
No
On KEV
Description
Plex media server 1.21 and before is vulnerable to ddos reflection attack via plex service.
CVSS 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 interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)15.0% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MS
Media Server · Plex
through 1.21 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33959
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33959
Exploit
https://github.com/lixiang957/CVE-2021-33959
Exploit
https://www.freebuf.com/articles/web/260338.html
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