DLL search path hijacking vulnerability in the UPDF.exe executable for Windows version 1.8.5.0 allows attackers with local access to execute arbitrary code by placing a FREngine.dll file of their choice in the 'C:\Users\<user>\AppData\Local\UPDF\FREngine\Bin64\' directory, which could lead to arbitrary code execution and persistence.
https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-updf
Published: 2025-09-10
Updated: 2025-09-11
Base Score: 6.6
Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity: High
Base Score: 7
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00014