Incorrect permission assignment for critical resource in FreeRDP - #VU152395
Published: September 28, 2026
Vulnerability identifier: #VU152395
CSH Severity: Medium
CVSS v4: 5.6 [CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-732
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to disclose private-key information.
The vulnerability exists due to incorrect permission assignment for a critical resource in the soft-smartcard PKINIT private-key temporary file when writing a PEM private key to a shared system temporary directory with a permissive umask. A local user can read the active private-key copy to disclose private-key information.
Exploitation requires the victim to invoke soft-smartcard logon with the cert: and key: suboptions on a multi-user Unix host.
Affected software
FreeRDP
Remediation
Install security update from vendor's website.
FreeRDP - update to 3.32.0