CVE-2016-2166

Name: CVE-2016-2166
Creator: NVD / NIST
Published: 2016-04-12T14:59:11.183+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 4.27%

Last modified Jun 17, 2026

CVE-2016-2166 is a vulnerability of currently unknown severity. The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.. EPSS estimates a 4.27% chance of exploitation in the next 30 days.

Description

The (1) proton.reactor.Connector, (2) proton.reactor.Container, and (3) proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain sensitive information or modify data via unspecified vectors.

Metrics

EPSS Probability

4.27%

89.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Apache	Qpid Proton	<= 0.12.0
Fedoraproject	Fedora	23

References

Timeline

Published: Apr 12, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2166?

How severe is CVE-2016-2166?

Severity scoring for CVE-2016-2166 is pending analysis. The EPSS model estimates a 4.27% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2166?

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-2016-2166?

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

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Source: NVD / NIST