CVE-2017-7652

Name: CVE-2017-7652
Creator: NVD / NIST
Published: 2018-04-25T13:29:00.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.68%

Last modified Jun 17, 2026

CVE-2017-7652 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.68% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.68%

74.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-789

Affected Software

Vendor	Product	Versions
Eclipse	Mosquitto	>= 1.0, <= 1.4.14
Debian	Debian Linux	7.0
Debian	Debian Linux	8.0
Debian	Debian Linux	9.0

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00016.htmlMailing List, Third Party Advisory
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/Patch, Vendor Advisory
https://www.debian.org/security/2018/dsa-4325Third Party Advisory
https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00037.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/06/msg00016.htmlMailing List, Third Party Advisory
https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/Patch, Vendor Advisory
https://www.debian.org/security/2018/dsa-4325Third Party Advisory

Timeline

Published: Apr 25, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7652?

How severe is CVE-2017-7652?

Severity scoring for CVE-2017-7652 is pending analysis. The EPSS model estimates a 1.68% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7652?

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-2017-7652?

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

Scan your code now

Source: NVD / NIST