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CVE-2026-4545

Estado: AnalizadaAlta (7.3)—

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.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:L sin UI:R indica escalada de privilegios local. CWE-426/427 (untrusted search path) típicamente permite DLL hijacking. PROPSYS.dll manipulable sugiere T1574.007 (DLL Search Order Hijacking) como impacto.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution PreventionThreat Intelligence ProgramRestrict File and Directory PermissionsAuditApplication Isolation and SandboxingExploit Protection

Tecnologías afectadas (1)

Flos-freeware — Notepad2

CWE

Referencias

JSON original (NVD)

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  "lastModified": "2026-06-17T10:56:47.467",
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