CVE-2026-41447: Zucchetti S.p.a FirmaCheck · Untrusted Search Path
Affects Zucchetti S.p.a FirmaCheckSource CVE Database V5
Not known to be exploited · CVSS 8.5 High.
Data as of 1 Nov 2026, 22:58 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 3 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 1 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Zucchetti S.p.a.FirmaCheck | Affected
| Fixed in– |
AI-suggested
Until an official fix is available, restrict local access to the affected directory (C:\Program Files (x86)\Common Files\SSL\) to trusted users only to prevent placement of malicious files. Monitor for unauthorized files in this directory and consider disabling automatic startup of FirmaCheck.exe if feasible.
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.
References
- zucchetti.it/it/cms/soluzioni/gestione-documentale/firme-e-marche/software-gestione-firme-digitali-firmacheck/software-gratuito-gestione-firme-e-documenti-descrizione.html (opens in a new tab)
- vulncheck.com/advisories/firmacheck-dll-hijacking-via-unvalidated-openssl-configuration-path (opens in a new tab)