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No exploitation reportedFix available

CVE-2017-7652

No exploitation reported by the sources we read.

  • Published2018-04-25
  • WeaknessCWE-789

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 Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.

Timeline

dates in UTC
  1. 2018-04-2513:29CVE publishedNVD

Versions per branch

NVD
Debian debian linux
BranchAffectedFixed in
7.0= 7.0no fix published
8.0= 8.0no fix published
9.0= 9.0no fix published
Eclipse mosquitto
BranchAffectedFixed in
1.x≥ 1.0, ≤ 1.4.14no fix published

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 1.4.8-1ubuntu0.16.04.4
  • mosquittoUbuntu:14.04:LTSall versions · fixed in 0.15-2+deb7u3ubuntu0.1
  • mosquittoDebian:14all versions · fixed in 1.4.15-1
  • mosquittoDebian:13all versions · fixed in 1.4.15-1
  • mosquittoDebian:12all versions · fixed in 1.4.15-1
  • mosquittoDebian:9all versions · fixed in 1.4.10-3+deb9u2
  • mosquittoDebian:8all versions · fixed in 1.3.4-2+deb8u2
  • mosquittoDebian:7all versions · fixed in 0.15-2+deb7u3

21 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
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

  • EUVD-2017-16657same flawENISA EUVD · LicenseRef-ENISA-legal-notice
  • GHSA-7349-r6vq-ggx3same flawGitHub Advisory Database · CC-BY-4.0
  • DLA-1334-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DLA-1409-1advisory covering several CVEsDebian · LicenseRef-unstated
  • DSA-4325-1advisory covering several CVEsDebian · LicenseRef-unstated

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2018-04-25
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-7349-r6vq-ggx3

Frequently asked questions

What is CVE-2017-7652?

In Eclipse Mosquitto 1.4.14, if a Mosquitto instance is set running with a configuration file, then sending a HUP signal to server triggers the configuration to be reloaded from disk. If there are lots of clients connected so that there are no more file descriptors/sockets available (default limit typically 1024 file descriptors on Linux), then opening the configuration file will fail.

Is CVE-2017-7652 actively exploited?

Active exploitation of CVE-2017-7652 has not been confirmed. Its EPSS score was 1.6% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-7652?

CVE-2017-7652 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

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