What is CVE-2026-4545?

CVE-2026-4545 is a high-severity vulnerability in Flos Freeware Notepad2, classified under Untrusted Search Path. CVSS score: 7.0/10. Published 2026-03-22.

How severe is CVE-2026-4545?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Flos Freeware Notepad2

CVE-2026-4545

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.

EPSS: 0.001 (2.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Flos Freeware Notepad2 — versions 4.2.25
Flos-freeware Notepad2 — versions 4.2.25

Weakness classification (CWE)

References

cna@vuldb.com (VDB Entry, Third Party Advisory, vdb-entry)
cna@vuldb.com (signature, Permissions Required, permissions-required)
cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
cna@vuldb.com (Permissions Required, related)

Frequently asked questions

What is CVE-2026-4545?: CVE-2026-4545 is a high-severity vulnerability in Flos Freeware Notepad2, classified under Untrusted Search Path. CVSS score: 7.0/10. Published 2026-03-22.
How severe is CVE-2026-4545?: High severity. CVSS v3 base score is 7.0 out of 10.