CVE-2017-7650

MediumCVSS 6.5/10Last modified Jun 17, 2026

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

CVSS 3.0 6.5/10CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
Eclipse Foundation	Mosquitto	0.15 to 1.4.11 inclusive

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
NVD status: Modified

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