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Vulnerability record · CVE-2026-41447 · published 3 August 2026

CVE-2026-41447: Untrusted search path vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.17% · top 94.6% CWE-426 · Untrusted search path Deferred
8.5CVSS 4.0 base score
0.17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
24 Sep 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://www.vulncheck.com/advisories/firmacheck-dll-hijacking-via-unvalidated-openssl-configuration-path
https://www.zucchetti.it/it/cms/soluzioni/gestione-documentale/firme-e-marche/software-gestione-firme-digitali-firmachec

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Source: NIST National Vulnerability Database (record CVE-2026-41447), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.