CVE-2020-11050

Name: CVE-2020-11050
Creator: NVD / NIST
Published: 2020-05-07T21:15:11.42+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.1/10EPSS 0.77%

Last modified Jun 17, 2026

CVE-2020-11050 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. In Java-WebSocket less than or equal to 1.4.1, there is an Improper Validation of Certificate with Host Mismatch where WebSocketClient does not perform SSL hostname validation. This has been patched in 1.5.0.. EPSS estimates a 0.77% chance of exploitation in the next 30 days.

Description

In Java-WebSocket less than or equal to 1.4.1, there is an Improper Validation of Certificate with Host Mismatch where WebSocketClient does not perform SSL hostname validation. This has been patched in 1.5.0.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.77%

51.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Java-Websocket Project	Java-Websocket	<= 1.4.1

References

https://github.com/TooTallNate/Java-WebSocket/security/advisories/GHSA-gw55-jm4h-x339Third Party Advisory
https://github.com/TooTallNate/Java-WebSocket/security/advisories/GHSA-gw55-jm4h-x339Third Party Advisory

Timeline

Published: May 7, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-11050?

How severe is CVE-2020-11050?

CVE-2020-11050 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 0.77% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11050?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11050?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST