Is CVE-2023-5632 actively exploited?

CVE-2023-5632 has no public evidence of in-the-wild exploitation as of 2025-06-25.

What is the CVSS score for CVE-2023-5632?

CVE-2023-5632 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2023-5632?

Patch guidance is available from eclipse security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-5632.

Fix CVE-2023-5632 - HIGH eclipse mosquitto

Description

In Eclipse Mosquito before and including 2.0.5, establishing a connection to the mosquitto server without sending data causes the EPOLLOUT event to be added, which results excessive CPU consumption. This could be used by a malicious actor to perform denial of service type attack. This issue is fixed in 2.0.6

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-834 CWE-834

Metadata

Primary Vendor: ECLIPSE
Published: 10/18/2023
Last Modified: 6/25/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2023-5632

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary