Medium severity5.3NVD Advisory· Published Jun 5, 2018· Updated Jun 17, 2026

CVE-2017-7653

Description

The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Eclipse/Mosquitto2 versions
cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*range: <=1.4.15
- (no CPE)range: unspecified
Debian/linux2 versions
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdfnvdThird Party Advisory
bugs.eclipse.org/bugs/show_bug.cginvdIssue TrackingThird Party Advisory
lists.debian.org/debian-lts-announce/2018/09/msg00036.htmlnvdMailing ListThird Party Advisory
www.debian.org/security/2018/dsa-4325nvdThird Party Advisory
usn.ubuntu.com/4023-1/nvd

News mentions

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cvss	0.345
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000