CVE-2026-21427

HIGH
2026-01-08 [email protected]
7.8
CVSS 3.0
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CVSS Vector

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 08, 2026 - 04:15 nvd
HIGH 7.8

Tags

Privilege Escalation RCE

Description

The installers for multiple products provided by PIONEER CORPORATION contain an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries. As a result, arbitrary code may be executed with the privileges of the running installer.

Analysis

Arbitrary code execution in PIONEER CORPORATION product installers through DLL search path manipulation allows local attackers with user interaction to execute malicious code with installer privileges. The vulnerability affects multiple products and requires user interaction to trigger, potentially compromising system integrity during software installation. …

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Remediation

Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.

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Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0

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CVE-2026-21427 vulnerability details – vuln.today
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