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CVE-2026-9661 Postecert FIRMAOK! 1.6.29 Local Privilege Escalation via OpenSSL Search Path

7.3 high

High (7.3) in poste italiane postecert firmaok!.

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Poste Italiane Postecert FIRMAOK! 1.6.29 on Windows contains a local privilege escalation vulnerability caused by an uncontrolled OpenSSL search path, where launcher.exe and dependent executables such as updater.exe and tslupdater.exe load OpenSSL configuration and library files from a hardcoded, user-writable directory that does not exist by default. A low-privileged local attacker can create this missing directory and place malicious OpenSSL configuration or library files inside it, causing the application to load and execute attacker-controlled code with the privileges of the user running it, enabling horizontal or, when a higher-privileged user runs the application, vertical privilege escalation up to full system compromise.

Severity

CVSS 4.0

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

CVSS 3.1

7.0 high
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-427 Uncontrolled Search Path Element
OWASP Top 10
A08:2025 Software or Data Integrity Failures
Published
Assigned by
VulnCheck (CNA)
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

  • poste italiane:postecert firmaok!

Versions

From the CNA's record in the CVE List.

ProductAffected
Poste Italiane Postecert FIRMAOK!1.6.29

Attack patterns (CAPEC)

  • CAPEC-38 Leveraging/Manipulating Configuration File Search Paths Likelihood: High · Severity: Very High
  • CAPEC-471 Search Order Hijacking Severity: Medium

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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