CVE-2026-4545 HIGH

CVE-2026-4545: Flos Freeware Notepad2 PROPSYS.dll uncontrolled search path

Vendor Flos Freeware
Product Notepad2
Weakness CWE-427
Published March 22, 2026
Last update March 24, 2026

CVSS base score

7.3/10
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS 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/E:X

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 22, 2026 CVE published
March 24, 2026 Record updated