CVE-2017-7650

Name: CVE-2017-7650
Creator: NVD / NIST
Published: 2017-09-11T16:29:00.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.47%

Last modified Jun 17, 2026

CVE-2017-7650 is a vulnerability of currently unknown severity. In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. EPSS estimates a 2.47% chance of exploitation in the next 30 days.

Description

In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.

Metrics

EPSS Probability

2.47%

82.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Eclipse	Mosquitto	< 1.4.12
Debian	Debian Linux	8.0

References

http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/Patch, Vendor Advisory
http://www.debian.org/security/2017/dsa-3865Third Party Advisory
http://www.securityfocus.com/bid/98741Third Party Advisory, VDB Entry
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765Exploit, Third Party Advisory
http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/Patch, Vendor Advisory
http://www.debian.org/security/2017/dsa-3865Third Party Advisory
http://www.securityfocus.com/bid/98741Third Party Advisory, VDB Entry
https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765Exploit, Third Party Advisory

Timeline

Published: Sep 11, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7650?

How severe is CVE-2017-7650?

Severity scoring for CVE-2017-7650 is pending analysis. The EPSS model estimates a 2.47% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7650?

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-2017-7650?

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

Scan your code now

Source: NVD / NIST