PatchSiren cyber security CVE debrief
CVE-2026-41447 Zucchetti S.p.a. CVE debrief
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 FilesSSL directory path. This vulnerability can be exploited when FirmaCheck.exe runs automatically at system startup, potentially leading to code execution at the startup process privilege level. The vulnerability exists due to the software's use of an unvalidated directory path, allowing attackers to write a malicious OpenSSL configuration file referencing an attacker-controlled DLL.
- Vendor
- Zucchetti S.p.a.
- Product
- FirmaCheck
- CVSS
- HIGH 8.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-08-03
- Original CVE updated
- 2026-08-05
- Advisory published
- 2026-08-03
- Advisory updated
- 2026-08-05
Who should care
Organizations using FirmaCheck for Windows before 1.3.16 should prioritize patching to prevent potential local code execution. This includes reviewing system logs, ensuring that the C:Program Files (x86)Common FilesSSL directory is properly validated and secured, and conducting regular vulnerability scans and inventory checks to identify potential exposures.
Technical summary
The vulnerability exists due to an unvalidated directory path used by FirmaCheck for Windows before 1.3.16. An attacker can place a crafted openssl.cnf file in the C:Program Files (x86)Common FilesSSL directory to execute arbitrary code at system startup. This allows local attackers to execute arbitrary code by placing a crafted openssl.cnf file in the unvalidated directory path. The vulnerability can be mitigated by ensuring that the C:Program Files (x86)Common FilesSSL directory is properly validated and secured.
Defensive priority
High-priority patching is recommended for FirmaCheck for Windows installations to prevent potential local code execution.
Recommended defensive actions
- Apply the vendor-provided patch to update FirmaCheck for Windows to version 1.3.16 or later.
- Implement strict access controls and monitoring for the C:Program Files (x86)Common FilesSSL directory.
- Conduct regular vulnerability scans and inventory checks to identify potential exposures.
- Review system logs for potential exploitation attempts.
- Ensure that the C:Program Files (x86)Common FilesSSL directory is properly validated and secured.
- Check relevant monitoring, detection, and logs for exposed assets that need extra review.
- Track exceptions, retest remediated assets, and close the item only after evidence is documented.
Evidence notes
The CVE record and NVD entry provide details on the DLL hijacking vulnerability in FirmaCheck for Windows before 1.3.16. Limited additional information is available from the source references. To verify, defenders should check the installed version of FirmaCheck for Windows, review system logs for potential exploitation attempts, and ensure that the C:Program Files (x86)Common FilesSSL directory is properly validated and secured.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-03T21:16:38.947Z and has not been modified since then.