CVE-2026-4545

Severity CVSS v4.0:

HIGH

Type:

CWE-426 Untrusted Search Path

Publication date:

22/03/2026

Last modified:

23/03/2026

Description

A security flaw has been discovered in Flos Freeware Notepad2 4.2.25. This affects an unknown function in the library PROPSYS.dll. Performing a manipulation results in uncontrolled search path. The attack is only possible with local access. The attack is considered to have high complexity. The exploitability is reported as difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

Vector 4.0

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS v4.0 Severity and Metrics:

Base Score: 7.30 HIGH
Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector (AV): Local
Attack Complexity (AC): High
Attack Requirements (AT): None
Privileges Required (PR): Low
User Interaction (UI): None
Confidentiality (VC): High
Integrity (VI): High
Availability (VA): High
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None

Base Score 4.0

7.30

Severity 4.0

HIGH

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.00

Severity 3.x

HIGH

Vector 2.0

AV:L/AC:H/Au:S/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 6.00 MEDIUM
Vector: AV:L/AC:H/Au:S/C:C/I:C/A:C

Attack Vector (AV): Local
Attack Complexity (AC): High
Authentication (Au): Single
Confidentiality (C): Complete
Integrity (I): Complete
Availability (A): Complete

Base Score 2.0

6.00

Severity 2.0

MEDIUM

CVE-2026-4545

Description

Impact

References to Advisories, Solutions, and Tools