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Home / CVE DB / CVE-2026-23512
Standard
Vulnerability Identifier

CVE-2026-23512

2026-01-14
Severity Assessment
8.6
HIGH
CVSS v3.x Score
Clinical Analysis (Description)

SumatraPDF is a multi-format reader for Windows. In 3.5.2 and earlier, there is a Untrusted Search Path vulnerability when Advanced Options setting is trigger. The application executes notepad.exe without specifying an absolute path when using the Advanced Options setting. On Windows, this allows execution of a malicious notepad.exe placed in the application's installation directory, leading to arbitrary code execution.

Vector Sequencing

Attack Parameters

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Impact Consequences

Technical Impact

Changed
Scope
High
Confidentiality
High
Integrity
High
Availability
AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Weakness Classification

CWE-CWE-426

View CWE Details ↗
Timeline

Time Line

PUBLICATION
14 Jan 2026
Impact Statistics

Key Metrics

CVSS Score
8.6
HIGH
Remediation Protocol

Recommended Solution

No automatic solution found. Check vendor references.
Patch Library
No direct patch listed in database.
Recommended Actions for Administrators

Immediate Action Plan

1. Inventory

Identify all affected systems in your infrastructure.

2. Assessment

Assess exposure and criticality for your organization.

3. Mitigation

Apply patches or available workarounds.

4. Verification

Test and confirm effectiveness of applied measures.

Sources & Bibliography
NIST NVD MITRE CVE External Reference ↗ External Reference ↗