CVE-2019-11777

Description

In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.76% Top 20%
Vendor Advisory eclipse.org
Affected: The Eclipse Foundation Eclipse Paho
Published at:
Updated at:

References

Link Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=549934 vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2019-11777?
CVE-2019-11777 has been scored as a high severity vulnerability.
How to fix CVE-2019-11777?
To fix CVE-2019-11777, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-11777 being actively exploited in the wild?
It is possible that CVE-2019-11777 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2019-11777?
CVE-2019-11777 affects The Eclipse Foundation Eclipse Paho.
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