Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2025-4384

Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
06/05/2025
Last modified:
15/04/2026

Description

The MQTT add-on of PcVue fails to verify that a remote device’s certificate has not already expired or has not yet become valid. This allows malicious devices to present certificates that are not rejected properly.<br /> <br /> The use of a client certificate reduces the risk for random devices to take advantage of this flaw.

Impact

Vector 4.0
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green CVSS v4.0 Severity and Metrics:

Base Score: 6.00 MEDIUM
Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/R:U/RE:M/U:Green

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Attack Requirements (AT): Present
Privileges Required (PR): None
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): High
Availability (VA): None
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Automatable (AU): No
Recovery (R): User
Vulnerability Response Effort (RE): Moderate
Provider Urgency (U): Green

Base Score 4.0
6.00
Severity 4.0
MEDIUM

References to Advisories, Solutions, and Tools