CVE-2026-41447 HIGH

CVE-2026-41447: FirmaCheck < 1.3.16 DLL Hijacking via Unvalidated OpenSSL Configuration Path

Vendor Zucchetti S.p.a.
Product FirmaCheck
Weakness CWE-426
Published August 3, 2026
Last update August 4, 2026

CVSS base score

8.5/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

FirmaCheck for Windows before 1.3.16 contains a dll hijacking vulnerability that allows local attackers to execute arbitrary code by placing a crafted openssl.cnf file in the unvalidated C:\Program Files (x86)\Common Files\SSL\ directory path. Attackers can write a malicious OpenSSL configuration file referencing an attacker-controlled DLL to achieve code execution at startup process privilege level when FirmaCheck.exe runs automatically at system startup.

Key dates

02Disclosure timeline

August 3, 2026 CVE published
August 4, 2026 Record updated