Is CVE-2026-4545 actively exploited?

No active exploitation of CVE-2026-4545 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4545 be exploited remotely?

No. CVE-2026-4545 requires local access to exploit.

What is the CVSS score of CVE-2026-4545?

CVE-2026-4545 has a CVSS score of 7.0 (HIGH).

HOME VULNERABILITIESCVE-2026-4545

HIGH

CVE-2026-4545

CWE-426Published: March 22, 2026· Updated: Mar 23, 2026

7.0

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.2th

Official 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.

NVD Source

Technical Analysis

CVE-2026-4545 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.0.