CVE-2021-41039

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Source
https://cve.org/CVERecord?id=CVE-2021-41039
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41039.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-41039
Downstream
Published
2021-12-01T20:15:07.933Z
Modified
2026-03-14T11:11:17.461690Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In versions 1.6 to 2.0.11 of Eclipse Mosquitto, an MQTT v5 client connecting with a large number of user-property properties could cause excessive CPU usage, leading to a loss of performance and possible denial of service.

References

Affected packages

Git / github.com/eclipse/mosquitto

Affected ranges

Type
GIT
Repo
https://github.com/eclipse/mosquitto
Events
Introduced
4555ee79e513d9a6dc5c13d527c56cb2cfdd24d0
Last affected
3b89bb2e3532f99f0394b11a09ccc481cebcb0b2
Database specific 
{
    "versions": [
        {
            "introduced": "1.6"
        },
        {
            "last_affected": "2.0.11"
        }
    ]
}

Affected versions

v1.*
v1.6
v1.6.1
v1.6.10
v1.6.11
v1.6.12
v1.6.2
v1.6.3
v1.6.4
v1.6.5
v1.6.6
v1.6.7
v1.6.8
v1.6.9
v2.*
v2.0.0
v2.0.1
v2.0.10
v2.0.11
v2.0.2
v2.0.3
v2.0.4
v2.0.5
v2.0.6
v2.0.7
v2.0.8
v2.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41039.json"