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[email protected]CVE-2021-41039

HistoryDec 01, 2021 - 8:15 p.m.

CVE-2021-41039

2021-12-0120:15:07

CWE-1050

[email protected]

web.nvd.nist.gov

eclipse mosquitto

mqtt

cve-2021-41039

nvd

denial of service

performance loss

security vulnerability

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.2

Confidence

High

EPSS

0.001

Percentile

39.4%

JSON

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.

Affected configurations

NVD

Node

eclipsemosquittoRange1.6–2.0.11

VendorProductVersionCPE
eclipsemosquittocpe:/a:eclipse:mosquitto::::

Vendor	Product	Version	CPE
eclipse	mosquitto		cpe:/a:eclipse:mosquitto::::

CNA Affected

[
  {
    "vendor": "The Eclipse Foundation",
    "product": "Eclipse Mosquitto",
    "versions": [
      {
        "version": "1.6",
        "status": "affected",
        "lessThan": "unspecified",
        "versionType": "custom"
      },
      {
        "version": "unspecified",
        "lessThanOrEqual": "2.0.11",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]