Security advisory
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2017-7652
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:50 UTC · Revision 1
Source evidence
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.
osv:CVE-2017-7652
Complete source record
{
"id": "ed6025713329880dff7009fb4c06a3e4b8ef3dddc29734bdd97dcc01e9ce676b",
"url": "https://osv.dev/vulnerability/CVE-2017-7652",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2017-7652",
"summary": "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.",
"evidence": "osv:CVE-2017-7652",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2017-7652",
"aliases": [
"CVE-2017-7652"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/eclipse-mosquitto/mosquitto",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "d72ec39d79effae08011e13faf5870fa7e80fa54"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.0"
},
{
"last_affected": "1.4.14"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v1.4.14",
"v1.4.13",
"v1.4.12",
"v1.4.11",
"v1.4.10",
"v1.4.9",
"v1.4.8",
"v1.4.7",
"v1.4.6",
"v1.4.5",
"v1.4.4",
"v1.4.3",
"v1.4.2",
"v1.4.1"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7652.json"
}
}
],
"modified": "2026-10-24T10:30:45.200906403Z",
"provider": "osv",
"references": [
"https://lists.debian.org/debian-lts-announce/2018/03/msg00037.html",
"https://lists.debian.org/debian-lts-announce/2018/06/msg00016.html",
"https://www.debian.org/security/2018/dsa-4325",
"https://bugs.eclipse.org/bugs/show_bug.cgi?id=530102",
"https://mosquitto.org/blog/2018/02/security-advisory-cve-2017-7651-cve-2017-7652/"
],
"provider_metadata": {
"unresolved_ranges": [
{
"cpes": [
"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
],
"vendor_product": "debian:debian_linux",
"extracted_events": [
{
"range": [
{
"introduced": "7.0"
},
{
"last_affected": "7.0"
},
{
"introduced": "8.0"
},
{
"last_affected": "8.0"
},
{
"introduced": "9.0"
},
{
"last_affected": "9.0"
}
],
"source": "CPE_STRING"
}
]
}
]
}
},
"related_cves": [
{
"value": "CVE-2017-7652",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 436072,
"published_at": "2018-04-25T13:29:00.49+00:00"
}