CVE-2026-41447

Local code execution via attacker-controlled OpenSSL configuration

Published Aug 3, 2026 · Updated Aug 3, 2026

DLL hijacking in Zucchetti FirmaCheck for Windows before 1.3.16 allows local users to execute arbitrary code through openssl.cnf. FirmaCheck.exe reads an unvalidated configuration path and honors an attacker-supplied configuration that references a malicious DLL. Exploitation requires write access to that directory and takes effect when FirmaCheck.exe starts automatically, executing with the startup process privileges.

CVSS severity8.5
High
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL hijacking in Zucchetti FirmaCheck for Windows before 1.3.16 allows local users to execute arbitrary code through openssl.cnf. FirmaCheck.exe reads an unvalidated configuration path and honors an attacker-supplied configuration that references a malicious DLL. Exploitation requires write access to that directory and takes effect when FirmaCheck.exe starts automatically, executing with the startup process privileges.

The record

CVE
CVE-2026-41447
Published
Aug 3, 2026
Updated
Aug 3, 2026
Vendor
Zucchetti S.p.A.
Product
FirmaCheck
Classifications
CWE-426, CAPEC-38, T1574.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 3, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.3.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Zucchetti S.p.A. · FirmaCheckversion=0 <1.3.16

Published CVSS scores

7.8VulnCheckCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-426Untrusted Search Path
CAPEC-38Leveraging/Manipulating Configuration File Search Paths
T1574.002DLL Side-Loading

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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