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CVE-2017-7650
In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows…
Medium6.5EPSS 2.5%
- Published
- Updated
- Reserved
- Assigned by
- eclipse
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 2.5% · top 15% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Weakness
- loss of confidentiality
- CWE-287 (opens in a new tab)
Affected products
Eclipse Foundation · Mosquitto
- affected 0.15 to 1.4.11 inclusive
References (4)
- http://mosquitto.org/2017/05/security-advisory-cve-2017-7650/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- 98741 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-3865 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=516765 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .