Denial of service in Open Connectivity Foundation Universal Plug and Play (UPnP)

Published: 2020-06-10 | Updated: 2022-08-07
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-12695
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Universal Plug and Play (UPnP)
Other software / Other software solutions

Vendor Open Connectivity Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU28948

Risk: Medium

CVSSv3.1: 7.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-12695

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes


The vulnerability allows a remote attacker to perform a distributed denial of service (DDoS) attack.

The vulnerability exists due to a CallStranger issue in the UPnP SUBSCRIBE functionality. A remote attacker can send traffic to arbitrary destinations, leading to amplified DDoS attacks and data exfiltration.


Install updates from vendor's website.

Vulnerable software versions

Universal Plug and Play (UPnP): before 2020-04-17

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.