Skip to main content
No exploitation reportedFix available

CVE-2017-7650

No exploitation reported by the sources we read.

  • Published2017-09-11
  • WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2017-09-1116:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 15:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-7650?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-7650?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
Eclipse mosquitto
BranchAffectedFixed in
1.4< 1.4.121.4.12

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • mosquittoUbuntu:16.04:LTSall versions · fixed in 1.4.8-1ubuntu0.16.04.1
  • mosquittoUbuntu:14.04:LTSall versions · fixed in 0.15-2ubuntu1.1
  • mosquittoDebian:14all versions · fixed in 1.4.10-3
  • mosquittoDebian:13all versions · fixed in 1.4.10-3
  • mosquittoDebian:12all versions · fixed in 1.4.10-3
  • mosquittoDebian:8all versions · fixed in 1.3.4-2+deb8u1
  • mosquittoDebian:7all versions · fixed in 0.15-2+deb7u1
  • mosquittoCleanStartall versions · fixed in 1.4.12-r0

22 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

  • EUVD-2017-16655same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-vcg2-pq78-9mhrsame flawGitHub Advisory Database · CC-BY-4.0
  • DLA-961-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DSA-3865-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Published
2017-09-11
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-vcg2-pq78-9mhr

Frequently asked questions

What is 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 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.

Is CVE-2017-7650 actively exploited?

Active exploitation of CVE-2017-7650 has not been confirmed. Its EPSS score was 2.5% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7650?

CVE-2017-7650 has a CVSS v3 base score of 6.5 (MEDIUM severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Running mosquitto? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, October 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record